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Flashcards in Spine Deck (40):
1

The Erector Spinae muscles are:

Iliocostalis (Lateral)
Longissimus (Middle)
Spinalis (Medial)

2

The Erector Spinae muscles are innervated by

Ventral Rami (not nerves)

3

What do the Erector Spinae muscles do?

Extend the lumbar spine

4

A spinal "segment" consists of

2 vertebrae and 1 disk

5

The Transversospinales muscles are:

Semispinalis (4-6 segments)
Roratores (1-2 segments)
Multifidus (3-4 segments)

6

What do the Transversospinales muscles do?

contra-lateral trunk rotation

7

What innervates the Transversospinales muscles?

Ventral Rami

8

The Suboccipital muscles are:

-Obliques
-Rectus capitis muscles
-Rectus capitis muscles
-Longus muscles

9

Superior oblique is located @

transverse process C1 to skull

10

The Superior oblique does what?

extend head, side bend head

11

Inferior oblique is located @

spinous process C2 to transverse process C1

12

Inferior oblique does what?

rotate head same side

13

Rectus capitis posterior major is located @

spinus process C2 to skull

14

Rectus capitis posterior major does what?

ipsilateral rotation

15

Rectus capitis posterior minor is located @

Transverse process C1 to skull

16

Rectus capitis posterior minor does what?

ipsilateral rotation

17

Rectus capitis lateralis is located @

transverse process C1 to skull

18

Rectus capitis lateralis does what?

side bending of head

19

Rectus capitis anterior is located @

transverse process C1 to foramen magnum

20

Longus capitis is located @

cervical vertebrae

21

Longus capitis does what?

flex the neck

22

Longus colli is located @

cervical vertebrae

23

Longus colli does what?

flex the neck

24

What is the ideal muscle posture for the spine (in terms of flexion and extension)?

Upper cervical spine in flexion
Mid & lower cervical spine in extension

25

a human spine has:

33 vertebrae, 23 discs

26

There is no disk where?

between C1-C2 and between the pieces of the sacrum or the coccyx

27

The different parts of vertebral column are:

7 cervical
12 thoracic
5 lumbar
5 sacral fused into one piece
3-5 coccyxgeal fused into 1 piece

28

Cervical and lumbar region have a curve called:

Lordosis

29

Thoracic and sacral region have a curve called:

Kyphosis

30

Largest vertebrae is:

L5

31

Cervical vertebrae have what kind of shape?

They are oval shaped

32

C1 is called the:

Atlas

33

C2 is called the:

Axis

34

What is unique about the Thoracic vertebrae?

-Heart shaped
-Spinous processes are swept downwards
-Narrow space for spinal cord

35

The center of a vertebral disk is called:

nucleus pulposis

36

Layers abound the center of the vertebral disk are called:

annulus fibrosis

37

What happens during a disk herniation?

The annulus fibrosis fractures and the nucleus pulposis leaks out.

38

The spinal cord ends at what point?

L1-L2

39

The hair-like projections after the spinal cord ends is called the:

cauda equina

40

Where does the spinal cord get its blood supply?

Via the vertebral artert