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Saturday, March 18, 2023

Thoracic vertebrae

This is the second in a series of patterns I'm releasing that fit together to form a life-sized anatomically-correct human spine. I have already released the pattern for the cervical vertebrae; the following pattern assumes you have already made these - Whilst it's possible to make this pattern without having first made these, there may be some parts where you struggle to work out what's going on. Let me know if this is the case and I'll try to help you out, and you may find it helpful to have a little look at some of the photos on the cervical vertebrae pattern.

Note that this is part of a larger series that fits together to form a full life-sized skeleton. The patterns that have been published so far can be found here.



Difficulty:

Medium - difficult


You will need:

  • A 2.5mm crochet hook
  • A 0.8mm crochet hook
  • Anchor creativa fino 4ply cotton in white (you will need multiple balls of this)
  • Rico essentials #10 crotton in cream
  • A darning needle
  • Polyester toy stuffing


Note:

  • This pattern includes the back-to-front single crochet stitch (bfsc). A video to show you how to do this can be found here. It's pretty simple but if you can't work it out you can just use a regular single crochet stitch, but this will give it a slightly different look.
  • 'Fasten off neatly' refers to a special way of fastening off which is neater and makes it easier to see where you should be crocheting on the next round (also known as invisible fastening off). This involves pulling up your yarn through your stitch, threading the yarn underneath the second stitch from where you pulled your yarn up, then threading your yarn back through the top of this stitch and down through the back of the work. There is a very helpful site that explains it clearly found here. Just make sure when you do this that you thread your needle through the SECOND stitch after the last stitch you made, otherwise you will end up with an extra stitch which may mean that all of the following rounds are out of line with each other. The false stitch that you create is referred to in this pattern as the 'new' st.
  • There are various points throughout this pattern noted as 'Point ...' that will be referred to later on - I'd recommend somehow marking these so that you can refer back to them later on
  • Rounds marked with * are slightly more than a single round. They will likely end with a sc2tog, and this will bleed over to the following round. In this case the round marker sould be moved to after the sc2tog.
  • If you are unsure about which st is the 'central st', place a marker in the leftmost of the front 2sts


For the bones

Use a 2.5mm hook and 4ply yarn throughout

For T1:
For the body:
Ch5
Round 1: sc in the 2nd chain st from hook, then sc in the next 2 sts. Make 3sc in the first chain st you made, then sc in the back of the previous 2 chain sts. Make 2sc in the back loop of the first st you crocheted into (10sc)
Round 2: Sc, make 2sc in each of the next 2sts, sc2, hdc in the same st as the last one you crocheted into, dc in the same st, ch2, slip3, ch2, dc, hdc in the same st, sc in the same st, hdc
Fasten off neatly

For the right SAF:
Make a magic loop with 6sc
Rounds 1 - 3: (3 rounds) sc in each st
Row 4: (this is a short row) make 2hdc in the first st, sc. ch1, turn
Row 5: Bfsc5. ch1, turn
Row 6: Sc, sc2tog
Fasten off

For the left SAF:
Make a magic loop with 6sc
Rounds 1 - 3: (3 rounds) sc in each st
Row 4: Sc4, make 2hdc in the last st. ch1, turn (6sts)
Row 5: Bfsc, bfsc2tog
Fasten off

Rejoin yarn to the 2nd st after the 'new' st of the body. 
Round 3: Sc in the back loop of this st and the next 7sts (Point A), ch7, skip5, sc in the back loop of the next 7sts (22sc)
Round 4: Slip6, sc, sc in the first st of row 5 of the Right SAF (see 1st photo below), sc in both of the 2sts of round 3 you haven't crocheted into yet (2nd photo), sc in the hole between the last 2 rows of this SAF (3rd photo), skip1, sc in the next st and the following 3 chain sts, make 2hdc in the next chain st, sc4.






Sc in the gap between the last 2 rows of the left SAF (on the opposite side to where you fastened off, 1st/2nd photos below), sc in one of the sts of round 3 (of the SAF) you haven't crocheted into yet (3rd photo), then sc2tog between the next 2 sts you haven't crocheted into (4th photo). Sc in the next st of the SAF.





Skip 1 on the main section, sc in the next st, slip4 (31sts (Note that one of the ch5 sts isn counted as a truning st so not included in this count))
Round 5: Slip10, hdc2, sc3, hdc, ch5, sc in the 2nd chain st from hook and each of the next 3 chain sts, hdc in the next st of the main section, sc3, hdc2, slip8 (38sts)
Round 6: Slip16, sc in the back loop of the next 3 chain sts, sc in the back of the final chain st, make 2hdc in the same chain st, make 2hdc in the next st, sc in the same st, sc3, slip7 (Note that this isn't a full round)
Fasten off neatly

Turn over the bone
Rejoin yarn to the body to the same st as the last one you crocheted into at point A
Round 7: Sc in the front loop of this st and the next 5sts of the body (looking at it from the reverse side, image 1 below), ch1, sc in the 5th st after the 'new' st you created when fastening off neatly on the main section (3rd image below), sc in the next 11sts, ch1 (20sts)





Round 8: In these last 20sts: sc6, sc2tog twice, sc6, sc2tog twice (16sc)
Round 9*: Sc2tog, sc2, sc2tog, sc3tog, sc3, sc3tog, sc2tog (9sc)
Round 10: Sc2, sc2tog (8sc)
Fasten off
Stuff

Rejoin yarn to the back of the first of the 7 chain sts you made on round 3. Sc in the back of this chain st and the next 6 chain sts. Ch1
Locate the central 2 sts of the pointy part of this bone (the spinal process) and put a stitch marker through them both, as shown below


Hdc in the 10th st before the first of these marked sts, then hdc in the next 2sts. Sc5, slip1, sc5tog, slip1, sc5, hdc3 (If you're confused about what's going on here I'd recommending going and having another look at my cervical vertebrae pattern as a very similar thing is done at the end of C3/C4/C7)
Fasten off

Sew the fasten-off end to where you fastened on at the start of this last round, then sew this section up in the same wasy as you did for the cervical vertebrae

Sew closed the holes made where you attached the SAFs. 


For T2:
For the SAFs (make 2):
Make a magic loop with 6sc
Rounds 1 - 4: (4 rounds) sc in each st
Ch7
Skip the first chain st then sc3tog between the next 3 chain sts. sc3tog between the last 3 chain sts
Fasten off


Make the body the same as for T1

Rejoin yarn to the 2nd st after the new st on the body
Round 3: Sc in the back loop of this st and the next 7sts (Point A). Ch7, skip5, sc in the back loop of the next 7sts (22sts)
Round 4: Slip7, sc, hdc in the first chain st, sc in the first st of round 4 of the SAF, then sc in the next 4sts
Sc in the next chain st of the main section. Hdc, make 2hdc in the following chain st, hdc, sc, sc in the first st of round 4 of the other SAF, sc in the next 4sts, hdc in the next chain st of the main section, Sc, slip6 (33sts)
Round 5: Slip10, sc2, hdc5, ch5, sc in the 2nd chain st from hook and each of the next 3 chain sts, hdc5 along the main section, sc2, slip8 (40sts)
Round 6: Slip16, sc, hdc in the back loop of the first of the ch5sts, then hdc in each of the next 2 chain sts, make 3hdc in the last of these chain sts, make 2hdc in the next chain st, hdc3, sc, slip7
Fasten off neatly

Turn the bone over and attach to same st of body as the last one you crocheted into at point A. 
Round 7: Sc in the front loop of this st and the next 5sts. Ch1, Sc in the 3rd st after the one you made when fastening off neatly, sc in the next 11sts, ch1 (20sc)
Round 8: In these last 20sts: sc6, sc2tog twice, sc6, sc2tog twice (16sts)
Round 9*: Sc2tog, sc3, sc2tog, sc3tog, sc4, sc3tog (10sc)
Round 10: Sc2tog, sc2, sc2tog twice (7sc)
Fasten off


Keep the bone turned over and rejoin yarn to the back of the 2nd chain st from the end of the ch7, similar to how you did for the previous bone. 

Round 11: Sc in the next 4sts, ch1. 

Locate the middle 2 sts at the front of the spinal process and put a stitch marker in them. Sc in the 9th st before the first of the stitch marker sts. 
Sc2, slip5, sc4tog, slip6, sc3, ch1

Round 12: Sc in each of the first 5 sts of this last round
Fasten off


For T3:
Make the SAFs the same as for T2

For the body:
Make a magic loop with 6sc
Round 1: make 2sc in each of the first 3sts, make 3hdc in the next st, hdc, make 3hdc in the last st (13sts)
Round 2: Sc3, make 2sc in the following st, sc3, make 3sc in the next st, slip3, make 3sc in the next st (18sts)
Fasten off neatly

Rejoin yarn to the 4th st after the 'new' st of the body. 
Round 3: Sc in this st and the next 7sts. Ch7 (Point A) , skip5, sc in the back loop of the next 6sts (21sts)
Round 4: Slip7, sc, hdc in the first chain st, sc in the first st of round 4 of one of the SAFs, then sc in the next 4sts. Sc in the next chain st of the main section, hdc, make 2hdc in the next chain st, hdc, sc, sc in the first st of round 4 of the other SAF, sc in the next 4sts, hdc in the next chain st of the main section, Sc, slip5 (32sts)
Round 5: Slip11, sc, hdc5, ch5, sc in the 2nd chain st from hook and each of the next 3 chain sts, hdc5 along the main section, sc, slip9 (40sts)
Round 6: Slip16, sc, hdc in the back of the first chain st and the next 2 chain sts, make 3hdc in the last chain st, make 2hdc in the next st, hdc3, sc, slip7
Fasten off neatly

Turn bone over and attach to same st of the body as the last one you crocheted into at point A. 
Round 7: Sc in the front loop of this st nd the next 5sts. Ch1, Sc in the 3rd st after the one you made when fastening off neatly, sc in the next 12sts, ch1 (21sts)
Round 8: Sc in each of these last 21 sts in turn
Round 9: sc6, sc3tog, sc2, sc2tog twice, sc3, sc3tog (15sc)
Round 10*: Sc5, sc3tog, sc, sc2tog twice, sc, sc3og (9sc)
Round 11: Sc2, sc2tog, sc, sc2tog (7sc)
Fasten off


Turn over the bone and rejoin yarn to the back loop of the end of the ch7 sts you made at the start. 

Round 12: Sc in this st and the next  the next 6sts. 

Locate the middle 2 sts of the spinal process and put a stitch marker in them. Sc in the 9th st before the first of the stitch marker st. Sc2, slip5, sc4tog, slip6, sc3
Round 13: Sc in each to the first 7 sts of this last round
Fasten off

For T4:
Make the body the same as for T3


For the SAFs (make 2):
Ch3
Round 1: sc in the 2nd chain st from hook, make 3sc in the first chain st you made, then make 2sc in the back of the first chain st you crocheted into (6sc)
Rounds 2 - 4: (3 rounds) sc in ecah st
Round 5: Sc2, sc2tog, sc2 (5sc)
Ch7
Row 6: Sc in the 2nd chain st from hook, sc2tog twice in the following chain sts, sc in the last chain st. ch1, turn
Row 7: Skip the first 3sts, then slip1
Fasten off


Rejoin yarn to the 4th st after the 'new' st of the body. 
Round 3: Sc in this st and the next 7sts (Point A). Ch9, skip3, sc in the back loop of the next 7sts (24sts)
Round 4: Sc8, in the chain sts: hdc3, slip3, hdc3, sc in the next 7sts (24sts)
Round 5: Slip8, slip the first st of round 5 of one of the SAFs, slip the next st, sc in the next 3sts of this section, skip the next st of the main section, then sc in the following st. Sc2, hdc, ch7, sc in the 2nd chain st from hook and each of the next 5sts, hdc in the same st as the one you made the hdc in before the chain sts. sc3, Sc in the first st of round 5 of the other SAF. Sc in the next 2sts, slip2, skip 1 on the main section, slip7 (45sts)
Round 6: Slip11, sc6, sc in the back loop of the first 5 chain sts, make 2sc in the back loop of the last chain st, sc in the next 12sts, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at Point A. 
Round 7: Hdc in the front loop of this st and the next 4sts. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 11sts, ch1 (19sc)
Round 8: Sc in each of these last 19 sts in turn
Round 9*: sc5, sc3tog, sc2, sc2tog twice, sc2, sc3tog (13sc)
Round 10: Sc4, sc3tog, sc, sc2tog twice, sc (9sc)
Round 11: sc3tog, sc, sc2tog (6sc)
Fasten off


Keep the bone turned over and rejoin yarn to the back of the end of the ch9sts. 
Round 12: Sc in this st and the next  the next 8sts. Ch1. Locate the middle st at the front (as you did for previous vertebrae) and put a stitch marker in it. Sc in the 11th st before the stitch marker st. Sc4, hdc2, sc3, sc5tog, sc3, hdc2, sc4, ch1
Round 13: Sc in each to the first 9 sts of this last round
Fasten off



For T5:
Make the SAFs the same as for T4

For the body:
Ch4
Round 1: Sc in the 2nd chain st from hook and the next chain st. Make 3sc in the first chain st you made, then sc in the back loop of the previous chain st you crocheted into. Make 2sc in the back of the first chain st you crocheted into (8sc)
Round 2: make 2sc in the first st, sc, make 3hdc in the next st, hdc, make 3hdc in the following st, sc, make 2sc in each of the last 2sts (15sts)
Round 3: sc4, make 3sc in the next st, slip3, make 3sc in the following st, sc5, make 2sc in the last st (20sts)
Fasten off neatly




Rejoin yarn to the st before the 'new' st on the body
Round 4: Sc in the back loop of this st and the next 7sts (Point A), ch7, skip3, sc in the back loop of the next 9sts (24sc)
Round 5: Sc8, in the chain sts: hdc3, slip1, hdc3, sc in the next 9sts
Round 6: Slip8, slip the first st of round 5 of one of the SAFs, slip the next st, sc in the next 3sts of this section, skip the next section of the main section, then sc in the following st. Sc, hdc, ch7, sc in the 2nd chain st from hook and each of the next 5 chain sts, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 5 of the other SAF. Sc in the next 2sts, slip2, skip 1 on the main section, slip9 (45sts)
Round 7: Slip10, sc6, sc in the back loop of the first 5 chain sts, make 2sc in the back loop of the last chain st, sc in the next 12sts, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at Point A.
Round 8:  Hdc in the front loop of this st and the next 4sts. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 14sts, ch1 (22sc)
Round 9: Sc in each of these last 22 sts in turn
Round 10: sc5, sc3tog, sc4, sc2tog twice, sc3, sc3tog (16sc)
Round 11*: Sc5, sc3tog, sc2, sc2tog twice, sc, sc3tog (12sc)
Round 12: Sc, sc2tog, sc2, sc2tog, sc, sc2tog (9sc)
Fasten off


Turn over the bone and rejoin yarn to the back of the end of the ch7sts. 
Round 13: Sc in this st and the next  the next 6sts. Ch1. Locate the middle st at the front (as you did for previous vertebrae) and put a stitch marker in it. Hdc in the 10th st before the stitch marker st. Hdc3, sc2, slip3, sc4tog, slip3, sc2, hdc4, ch1
Round 14: Sc in each to the first 7 sts of this last round
Fasten off

For T6:
Make the body and SAFs the same as for T5

Rejoin yarn to the st before the 'new' st on the body
Round 4: Sc in the back loop of this st and the next 7sts (Point A) , ch7, skip3, sc in the back loop of the next 9sts
Round 5: Sc8, in the chain sts: hdc3, slip1, hdc3, sc in the next 9sts
Round 6: Slip8, slip the first st of round 5 of one of the SAFs, slip the next st, sc in the next 3sts of this section, skip the next section of the main section, then sc in the following st. Sc, hdc, ch7, sc in the 2nd chain st from hook and each of the next 5 chain sts, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 5 of the other SAF. Sc in the next 2sts, slip2, skip 1 on the main section, slip9 (45sts)
Round 7: Slip11, ch1, hdc5, sc6 in the back loop of the chain sts, make 2sc in the back loop of the last chain st, sc in the next 7sts, hdc5, ch1, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at Point A.
Round 8: Hdc in the front loop of this st nd the next 4sts. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 14sts, ch1 (22sc)
Round 9: Sc in each of these last 22 sts in turn
Round 10: sc5, sc3tog, sc4, sc2tog twice, sc3, sc3tog
Round 11: Sc4, sc3tog, sc2, sc2tog twice, sc, sc3tog
Round 12: Sc, sc2tog, sc2, sc2tog, sc, sc2tog
Fasten off


Turn over the bone and rejoin yarn to the back of the end of the ch7sts. 
Round 13: Hdc in this st and the next  the next 6sts. Ch1. Locate the middle st at the front (as you did for previous vertebrae) and put a stitch marker in it. Sc in the 11th st before the stitch marker st. Sc2, hdc3, slip4, sc4tog, slip4, hdc3, sc3, ch1
Round 14: Sc in the first 7sts of the last round
Fasten off


For T7:
Make the SAFs the same as for T6

For the body:
Ch4
Sc in the 2nd chain st from hook and the next chain st. Make 3sc in the first chain st you made, then sc in the back loop of the previous chain st you crocheted into. Make 2sc in the back of the first chain st you crocheted into (8sc)
Round 2: make 2sc in the first st, sc, make 3hdc in the next st, hdc, make 3hdc in the following st, sc, make 2sc in each of the last 2sts (15sts)
Round 3: make 2sc in the first st, hdc3, make 2hdc in the following st, sc in the same st as you just crocheted into, slip3, sc, make 2hdc in the same st as the previous one you crocheted into, hdc4, make 2sc in the last 2sts (22sts)
Fasten off neatly



Rejoin yarn to the st before the 'new' st on the body
Round 4: Sc in the back loop of this st and the next 8sts (Point A), ch9, skip3, sc in the back loop of the next 10sts (28sc)
Round 5: Sc9, in the chain sts: hdc4, slip1, hdc4, sc in the next 10sts
Round 6: Slip10, slip the first st of round 5 of one of the SAFs, slip the next st, sc in the next 3sts of this section, skip the next section of the main section, then sc in the following st. Sc, hdc, ch7, sc6 down this chain, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 5 of the other SAF. Sc in the next 2sts, slip2, skip 1 on the main section, slip11 (49sts)
Round 7: Slip12, ch1, hdc6, sc in the back loop of the first 5 chain sts, make 2sc in the back loop of the last chain st, sc in the next 6sts, hdc6, ch1, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at Point A. 
Round 8: Hdc in the front loop of this st and the next 4sts. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 15sts, ch1 (23sts)
Round 9: Sc in each of these last 23 sts in turn
Round 10*: sc6, sc3tog, sc3, sc2tog 3 times, sc4, sc3tog (16sc)
Round 11*: Sc4, sc3tog, sc, sc2tog twice, sc3, sc3tog (10sc)
Round 12*: Sc2, sc2tog, sc2, sc2tog, sc, sc2tog (7sc)
Fasten off


Turn over the bone and Rejoin yarn to the back of the end of the ch9sts. Hdc in this st and the next  the next 8sts. Ch1. Locate the middle st at the front (as you did for previous vertebrae) and put a stitch marker in it. 
Round 13: Sc in the 12th st before the stitch marker st. Sc4, sc3tog, slip3, sc4tog slip3, sc3tog, sc5, ch1
Round 14: Sc in the first 9sts of the last round
Fasten off

For T8:
Make the body and SAFs the same as for T7

Rejoin yarn to the st before the 'new' st on the body
Round 4: Sc in the back loop of this st and the next 8sts (Point A), ch9, skip3, sc in the back loop of the next 10sts (28sc)
Round 5: Sc9, in the chain sts: hdc4, slip1, hdc4, sc in the next 10sts
Round 6: Slip10, slip the first st of round 5 of one of the SAFs, slip the next st, sc in the next 3sts of this section, skip the next section of the main section, then sc in the following st. Sc, hdc, ch7, sc6 down this chain, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 5 of the other SAF. Sc in the next 2sts, slip2, skip 1 on the main section, slip11 (49sts)
Round 7: Slip12, ch1, hdc6, sc in the back loop of the first 5 chain sts, make 2sc in the back loop of the last chain st, sc in the next 6sts, hdc6, ch1, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at point A
Round 8: Hdc in the front loop of this st and the next 3sts make 2hdc in the front loop of the next st. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 15sts, ch1 (24sts)
Round 9: Sc in each of these last 24 sts in turn
Round 10: Sc in each st
Round 11*: sc6, sc3tog, sc3, sc2tog 3 times, sc4, sc3tog (18sc)
Round 12: Sc4, sc3tog, sc2, sc2tog twice, sc2, sc3tog (12sc)
Round 13: Sc2, sc2tog, sc2, sc2tog, sc, sc2tog (9sc)
Fasten off


Turn over the bone and rejoin yarn to the back of the end of the ch9sts. 
Round 14: Hdc in this st and the next  the next 8sts. Ch1. Locate the middle 2sts at the front (as you did for previous vertebrae) and put a stitch marker in it. Sc in the 12th st before the furst of these stitch marker sts, Sc4, sc3tog, slip3, sc4tog, slip3, sc3tog, sc4, ch1
Round 15: Sc in the first 9sts of the last round
Fasten off

For T9/T10:
For the SAFs (make 2):
Ch3
Round 1: sc in the 2nd chain st from hook, make 3sc in the first chain st you made, then make 2sc in the back of the first chain st you crocheted into (6sc)
Round 2 - 4: (3 rounds) sc in each st
Ch7
Row 5: Sc in the 2nd chain st from hook, sc2tog twice, sc, turn
Row 6: skip3, slip1
Fasten off

For the body:
Ch3
Round 1: sc in the 2nd chain st from hook, make 3sc in the first chain st you made, then make 2sc in the back of the first chain st you crocheted into (6sc)
Round 2: make 2sc in each st (12sc)
Round 3: (sc, make 2sc in the next st) 6 times (18sc)
Round 4: Sc2, make 2sc in the next st, sc3, hdc3, sc3, make 3hdc in the following st, sc2, make 2sc in the next st, sc2, make 2sc in the following st, sc (23sts)
Round 5: Sc, make 2sc in the next st, sc (24sc)
Fasten off neatly


Rejoin yarn to the 4th st before the new st of the body
Round 6: Sc in the back loop of this st and the next 10sts (Point A), ch9, skip3, sc in the back loop of the next 12sts (32sts)
Round 7: Sc11, in the chain sts: hdc4, slip1, hdc4, sc in the next 12sts
Round 8: Slip12, slip the first st of round 4 of one of the SAFs, slip the next st, sc in the next st of this section, sc2tog, skip the next section of the main section, then sc in the following st. Sc, hdc, ch6, sc in the 2nd chain st from hook and each of the next 4 chain sts, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 4 of the other SAF. Sc2tog, slip2, skip 1 on the main section, slip13 (51sts)
Round 9: Slip13, ch1, hdc6, sc in the back loop of the first 4 chain sts, make 2sc in the back loop of the last chain st, sc in the next 5sts, hdc6, ch1, slip4
Fasten off neatly

Turn bone over and attach yarn to same st of body as the last one you crocheted into at Point A.
Round 10: Hdc in the front loop of this st and the next 4sts. Ch1, Sc in the st after the one you made when fastening off neatly, sc in the next 18sts, ch1 (26sc)
Round 11: Sc in each of these last 26 sts in turn
Round 12: Sc in each st
Round 13*: sc5, sc3tog, sc5, sc2tog 3 times, sc5, sc3tog (19sc)
Round 14*: sc4, sc3tog, sc3, sc2tog, sc, sc2tog, sc2, sc3tog (13sc)
Round 15: sc2, sc2tog, sc2, sc2tog, sc, sc2tog, sc, sc2tog (9sc)
Round 16: sc2tog twice (7sc)
Fasten off


Turn over the bone and Rejoin yarn to the back of the end of the ch9sts. 
Round 16: Hdc in this st and the next 8sts. Ch1. Locate the middle 2sts at the front (as you did for previous vertebrae) and put a stitch marker in it. Sc in the 10th st before the furst of these stitch marker sts, Sc3, sc3tog, slip2, sc4tog, slip2, sc3tog, sc4, ch1
Round 17: Sc in the first 9sts of the last round
Fasten off


For T11:
For the SAFs (make 2):
Ch3
Round 1: sc in the 2nd chain st from hook, make 3sc in the first chain st you made, then make 2sc in the back of the first chain st you crocheted into (6sc)
Round 2 - 3: (2 rounds) sc in each st
Row 4: Sc2, ch8
Row 5: Sc in the 2nd chain st from hook and the next chain st, sc3tog between the next 3 chain sts, sc in the last 2 chain sts. ch1, turn
Row 6: Skip4, slip1
Fasten off

For the body:
Make a magic loop with 6sc
Round 1: make 2sc in each st (12sc)
Round 2: (sc, make 2sc in the next st) 6 times (18sc)
Round 3: Hdc, make 2hdc in each of the next 2sts, hdc, sc2, make 2sc in the next st, slip2, make 2sc in the following st, sc3, hdc, make 2hdc in each of the next 2sts, hdc, slip1 (24sts)
Round 4: Slip1, hdc, make 2hdc in the next st, hdc, sc3, slip9, sc3, hdc, make 2hdc in the following st, hdc, slip2 (26sts)
Round 5: (Note that this is slightly less than a full round) Slip2, hdc, make 2hdc in the next st, hdc, slip16, hdc, make 2hdc in the following st, hdc, slip1 (28sts)
Fasten off neatly

Rejoin yarn to the 12th st after the new st you made when fastening off neatly on the body
Round 6: Sc in the back loop of this st and the next 14sts (Point A), ch9, skip4, sc in the back loop of the next 9sts
Round 7: Sc15, in the chain sts: hdc4, slip1, hdc4, sc in the next 10sts
Round 8: Slip15, sc in the 3rd st of round 3 of one of the SAFs (i.e. the 3rd st after the last one you crocheted into before the ch8), sc in the next 3sts, skip the next st of the main section, then sc in the following st. Sc, hdc, ch5, sc in the 2nd chain st from hook and each of the next 3 chain sts, hdc in the same st as the one you made the hdc in before the chain sts. sc2, Sc in the first st of round 3 of the other SAF. Sc3, skip 1 on the main section, slip10 (47sts) 
Round 9: Slip18, ch1, make 2hdc in the next st, hdc3, sc in the back loop of the first 3 chain sts, make 2sc in the back loop of the last chain st, sc in the next 4sts, hdc3, 2hdc, ch1, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at Point A.
Round 10: Hdc in the front loop of this st and the next 5sts. Ch1, Sc in the 3rd st after the one you made when fastening off neatly, sc in the next 19sts, ch1 (28sc)
Round 11: Sc in each of these last 28 sts in turn
Round 12: Sc in each st
Round 13*: sc5, hdc3tog, sc4, sc2tog, sc, sc2tog, sc, sc2tog, sc6, hdc3tog (21sc)
Round 14*: sc3, sc3tog, sc4, sc2tog, sc, sc2tog, sc4, sc3tog (15sc)
Round 15*: sc2, sc2tog, sc2, sc2tog, sc, sc2tog, sc, sc2tog twice (10sc)
Round 16: sc2tog 3 times (7sc)
Fasten off neatly


Turn over the bone and rejoin yarn to the back of the end of the ch9sts. 
Round 17: Hdc in this st and the next 8sts. Ch1. Locate the middle st at the front (as you did for previous vertebrae) and put a stitch marker in in. Sc in the 8th st before this stitch marker st, Sc3, sc3tog, slip5, sc3tog, sc4, ch1
Round 18: Sc in the first 9sts of the last round
Fasten off


For T12:
For the SAFs (make 2):
Make a  magic loop with 5sc
Round 1: Sc in each st
Round 2: Hdc2, sc, slip1, sc
Round 3: Hdc2, slip2
Ch8
Row 4: Sc in the 2nd chain st from hook and the next chain st, sc3tog between the next 3 chain sts, sc in the last 2 chain sts. ch1, turn
Row 5: Skip4, slip1
Fasten off


Make the body the same as for T11


Rejoin yarn to the 13th st before the new st you made when fastening off neatly
Round 5: Sc in the back loop of this st and the next 11sts, ch9, skip4, sc in the back loop of the next 12sts (33sts)
Round 6: Sc12, in the chain sts: hdc3, sc, slip1, sc, hdc3, sc in the next 12sts
Round 7: Sc11, hdc4, sc, slip1, sc, hdc4, sc11
Round 8: Slip13, sc in the next of round 2 of one of the SAFs (after the last st you crocheted into before the ch8), sc in the next 3sts, sc in the following st of the main section, Sc2, hdc, ch5, sc in the 2nd chain st from hook and each of the next 3 chain sts, hdc in the same st as the one you made the hdc in before the chain sts. sc3, sc in the 2nd st after the last st you crocheted into on the other SAF. Sc3, slip the next 10sts of the main section (50sts)
Round 9: Slip18, ch1, make 2hdc in the same st as the one you last slipped, hdc, hdc2tog, hdc in the back loop of the first 3 chain sts, make 2hdc in the back loop of the last chain st, hdc in the next 5sts, hdc2tog, hdc, make 2hdc in the next st, ch1, slip4
Fasten off neatly

Turn bone over and attach to same st of body as the last one you crocheted into at point A.
Row 10: Sc in the front loop of this st and the next 5sts. ch1, turn (6sc)
Row 11: Bfsc6. ch1, turn
Round 12: Sc6. Ch1, Sc in the 2nd st after the one you made when fastening off neatly, sc in the next 20sts, ch1 (29sc)
Round 13: Sc in each of these last 29 sts in turn
Round 14: Sc in each st
Round 15*: sc6, hdc3tog, sc4, sc2tog, sc, sc2tog, sc, sc2tog, sc6, hdc3tog (22sc)
Round 16*: Sc4, sc3tog, sc4, sc2tog, sc, sc2tog, sc4, sc3tog (16sc)
Round 17*: Sc3, sc2tog, sc2, sc2tog, sc, sc2tog, sc, sc2tog twice (11sc)
Round 18: sc2tog 4 times (7sc)
Fasten off


Turn over the bone and rejoin yarn  (need to chnage this to keep the bone turned over on all vertebrae) to the back of the end of the ch9sts. 
Round 19: Hdc in this st and the next  the next 8sts. Ch1, turn. Slip1. Locate the middle 2sts at the front (as you did for previous vertebrae) and put a stitch marker in it. Make 2hdc in the 7th st before the first of these stitch marker sts, Sc, slip4, sc4tog, slip5, sc, make 2hdc in the next st, ch1
Round 20: Skip the first st of the last round, then sc in the next 7sts
Fasten off


For the intervertebral discs

Use a 0.8mm hook and #10 yarn throughout

For disc 11/12:Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: (sc3, make 2sc in the next st) 6 times (30sc)Round 5: Sc4, make 2sc in the next st, sc4, make 2sc in the following st, make 2hdc in the next st, hdc, make 2hdc in the following st, sc3, make 2hdc in the next st, hdc, make 2hdc in the following st, (sc4, make 2sc in the next st) twice, sc (38sts)Round 6: Sc5, make 2sc in the next st, sc6, ch1, make 2hdc in each of the next 3sts, sc, slip5, sc, make 2hdc in each of the next 3sts, ch1, sc5, make 2sc in the following st, sc7 (48sts)Round 7: Sc in each stRound 8: Hdc9, sc5, slip19, sc5, hdc10Round 9: Sc in each stRound 10: Sc5, sc2tog, sc7, hdc2tog 3 times, sc, slip6, sc, hdc2tog 3 times, sc5, sc2tog, sc7 (40sts)Round 11: Sc5, sc2tog, sc5, sc2tog, hdc2tog, hdc, hdc2tog, sc3, hdc2tog, hdc, hdc2tog, sc5, sc2tog, sc4, sc2tog (32sc)Round 12: (Sc3, sc2tog) 6 times, sc2 (26sc)
Round 13: (sc2, sc2tog) 6 times, sc2 (20sc)
Round 14: (sc, sc2tog) 6 times, sc2 (14sc)
Stuff lightlyRound 15: Sc2tog 7 timesFasten offFor disc 10/11:Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: (sc3, make 2sc in the next st) 6 times (30sc)Round 5: (Sc4, make 2sc in the next st) twice, make 2hdc in the following st, hdc, make 2hdc in the next st, sc3, make 2hdc in the next st, hdc, make 2hdc in the following st, sc4, make 2sc in the next st, sc4, make 2sc in the following st, sc (38sts)Round 6: Sc5, make 2sc in the next st, sc6, ch1, make 2hdc in each of the next 3sts, sc, slip5, sc, make 2hdc in each of the next 3sts, ch1, sc5, make 2sc in the next st, sc7 (48sts)Rounds 7-8: (2 rounds) Sc in each stRound 9: Sc5, sc2tog, sc7, hdc2tog 3 times, sc, slip6, sc, hdc2tog 3 times, sc5, sc2tog, sc7 (40sts)Round 10: Sc5, sc2tog, sc5, sc2tog, hdc2tog, hdc, hdc2tog, sc3, hdc2tog, hdc, hdc2tog, sc5, sc2tog, sc4, sc2tog (32sc)Round 11: (Sc3, sc2tog) 6 times, sc2 (26sc)
Round 12:  (sc2, sc2tog) 6 times, sc2 (20sc)
Round 13: (sc, sc2tog) 6 times, sc2 (14sc)Stuff lightlyRound 14: Sc2tog 7 times (7sc)Fasten offFor disc T9/10:Round 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: (sc3, make 2sc in the next st) 6 times (30sc)Round 5: Sc4, make 2sc in the next st, sc3, make 2hdc in each of the next 3sts, sc, slip1, sc, make 2hdc in each of the next 3sts, sc4, make 2sc in the following st, sc4, make 2sc in the next st, sc2 (39sts)Round 6 - 7: (2 rounds) Sc in each stRound 8: Sc5, sc2tog, sc3, hdc2tog 3 times, sc, slip1, sc, hdc2tog 3 times, sc4, sc2tog, sc4, sc2tog, sc2 (30sts)
Round 9: (sc3, sc2tog) 6 times (24sc)Round 10: (sc2, sc2tog) 6 times (18sc)
Round 11: (sc, sc2tog) 6 times (12sc)
Stuff lightlyRound 12: sc2tog 6 times (6sc)Fasten offFor discs T7/8 and T8/9 (make 2):Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: (sc3, make 2sc in the next st) 6 times (30sc)Round 5: (Sc4, make 2sc in the next st) twice sc, hdc, make 2hdc in each of the next 3sts, sc, slip3, sc, make 2hdc in each of the next 3sts, hdc, sc4, make 2sc in the next st, sc (39sts)Round 6: Sc in each stRound 7: Sc18, slip11, sc10Round 8: Sc5, sc2tog, sc4, sc2tog, sc, hdc, hdc2tog 3 times, sc, slip3, sc, hdc2tog 3 times, hdc, sc4, sc2tog (30sc)Round 9: (sc3, sc2tog) 6 times (24sc)Round 10: (sc2, sc2tog) 6 times (18sc)
Round 11: (sc, sc2tog) 6 times (12sc)
Stuff lightlyRound 12: sc2tog 6 times (6sc)Fasten offFor disc T6/7:Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: Sc3, make 2sc in the next st, sc3, make 2hdc in each of the next 2sts, make 2sc in the following st, slip2, make 2sc in the next st, make 2hdc in each of the next 2sts, sc3, make 2sc in the following st, sc3, 2sc, sc (33sts)Round 5: Sc12, make 2hdc in the next st, sc6, make 2hdc in the next st, sc13 (35sts)Round 6: Sc12, hdc2tog, sc6, hdc2tog, sc13 (33sts)Round 7: Sc4, sc2tog, sc3, hdc2tog twice, sc2tog, slip2, sc2tog, hdc2tog twice, sc3, sc2tog, sc3, sc2tog (24sts)Round 8: (sc2, sc2tog) 6 times (18sc)Round 9: (sc, sc2tog) 6 times (12sc)Stuff very lightlyRound 10: sc2tog 6 times (6sc)Fasten offFor disc T5/6:Make the same as T6/7 but don't stuffFor discs T4/5 and 3/4 (make 2):Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: Sc2, make 2sc in the next st, sc2, make 2hdc in each of the following 2sts, make 2sc in the next st, slip1, make 2sc in the next st, make 2hdc in each of the following 2sts, sc2, make 2sc in the next st, sc2, make 2sc in the following st, sc (27sts)Round 4: Sc9, make 2hdc in each of the following 2sts, sc4, make 2hdc in each of the following 2sts, sc11 (29sts)Round 5: Sc9, hdc2tog twice, sc4, hdc2tog twice, sc11 (27sts)Round 6: Sc3, sc2tog, sc2, hdc2tog twice, sc2tog, slip1, sc2tog, hdc2tog twice, sc2, sc2tog, sc2, sc2tog (18sts)Round 7: (sc, sc2tog) 6 times (12sc)Round 8: sc2tog 6 times (6sc)Fasten offFor T2/3:Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: Sc, make 2sc in the next st, sc, make 2hdc in each of the following 2sts, sc2, make 2hdc in each of the following 2sts, sc, make 2sc in the next st, sc (18sts)Round 3: Sc2, make 2sc in the next st, sc2, make 2hdc in each of the following 2sts, slip4, make 2hdc in each of the following 2sts, sc2, make 2sc in the next st, sc2 (24sts)Round 4: Sc8, make 2hdc in each of the following 2sts, sc5, make 2hdc in each of the following 2sts, sc7 (28sts)Round 5: Sc8, hdc2tog twice, sc5, hdc2tog twice, sc7 (24sts)Round 6: Sc3, sc2tog, sc2, hdc2tog twice, slip4, hdc2tog twice, sc2, sc2tog, sc2 (18sts)Round 7: Sc2, sc2tog, sc, hdc2tog twice, sc2, hdc2tog twice, sc, sc2tog (12sts)Round 8: sc2tog 6 times (6sc)Fasten offFor T1/2:Ch8Round 1: sc in the 2nd chain st from hook and each of the next 5 sts. Make 3sc in the last chain st, sc in the back loop of each of the previous 5 chain sts you crocheted into in turn, make 2sc in the first chain st you crocheted into (16sc)Round 2: make 2sc in the first st, sc5, make 2sc in each of the next 3 sts, sc5, make 2sc in each of the last 2sts (24sc)Round 3: sc, make 2sc in the next st, sc5, (sc, make 2sc in the next st) 3 times, sc5, (sc, make 2sc in the next st) twice (36sc)Rounds 4 - 5: (2 rounds) sc in each st
Round 6: sc, sc2tog, sc5, (sc, sc2tog) 3 times, sc5, (sc, sc2tog) twice (24sc)
Round 7: sc2tog, sc5, sc2tog 3 times, sc5, sc2tog twice (16sc)Fasten offFor the disc between C7/T1:Make a magic loop with 6scRound 1: make 2sc in each st (12sc)Round 2: (sc, make 2sc in the next st) 6 times (18sc)Round 3: (sc2, make 2sc in the next st) 6 times (24sc)Round 4: sc in each st
Round 5: (sc2, sc2tog) 6 times (18sc)
Round 6: (sc, sc2tog) 6 times (12sc)Round 7: sc2tog 6 times (6sc)
Fasten off

To make up

Sew in the loose ends of all crocheted sections. You will likely want to shape the bodies of the vertabrae so that that their upper and lower surfaces lie relatively flat, as can be seen in the photos below









You then need to assemble the spine from the bottom up, sandwiching the intervertebral discs between the bodies of the corresponding vertebrae.














If you're creating a full spine you will then want to sew the top intervertebral disk to the bottom of the cervical spine.




That's all from this pattern - I hope you've enjoyed it! If you have any questions please feel free to email them to me at lhodginscrochet@gmail.com. If you want to hear more about my work and find out when I publish a new pattern the best way is to follow me on my Instagram page. As always you're very welcome to sell finished products but I ask that you don't re-post this pattern or claim it as your own. Thank you!