Vertebrae - McNulty 9/24/14

Question 1

How many cervical vertebrae are there?

Answer 1

7

Question 2

How many thoracic vertebrae are there?

Answer 2

12

Question 3

How many lumbar vertebrae are there?

Answer 3

5

Question 4

Which joint nods “yes”?

Answer 4

Atlas-occipital joint

Question 5

Which joint shakes “no”?

Answer 5

Atlas-axis joint

Question 6

Which muscle in the sub occipital triangle shakes the head “no”?

Answer 6

The obliquus capitis inferior m. (attaches the axis to the atlas)

Question 7

Which cervical vertebrae has the odontoid process?

Answer 7

C2 axis

Question 8

Does the axis have a bifid spinous process?

Answer 8

yes

Question 9

What type of vertebrae have articular facets that interface in the anterior-posterior direction?

Answer 9

Thoracic vertebrae (as opposed to lumbar, which interface in the medial-lateral direction)

Question 10

How many curves of the spine are there?

Answer 10

4

Question 11

Name the primary curvatures of the spine

Answer 11

1. Thoracic 2. Sacral

Question 12

Name the secondary curvatures of the spine

Answer 12

1. Cervical 2. Lumbar

Question 13

Name the ligament on the anterior side of the vertebral body

Answer 13

Anterior longitudinal ligament

Question 14

Name the ligament against the posterior side of the vertebral body

Answer 14

Posterior longitudinal ligament

Question 15

Name the ligament that lies against anterior side of the vertebral lamina

Answer 15

Ligamentum flavum

Question 16

The sacrum is composed of

Answer 16

5 fused sacral vertebrae

Question 17

Spinal nerves exit which foramen?

Answer 17

intervertebral foramen

Question 18

In adults, what vertebral level does the spinal cord end?

Answer 18

L1/L2

Question 19

What ligament attaches the dura mater to the arachnoid layer?

Answer 19

There is no such ligament.

Question 20

What ligament attaches the arachnoid layer to the underlying pia mater?

Answer 20

Denticulate ligament

Question 21

CSF is contained below which meningal layer of the spinal chord?

Answer 21

Arachnoid layer

Question 22

What ligament is found between the vertebral body and the dura mater of the spinal cord?

Answer 22

Posterior longitudinal ligament

Question 23

What sensory elements are directed by the C1 sub occipital n.?

Answer 23

the sub occipital nerve is only motor, to the sub occipital triangle.

Question 24

Are spinal nerves only sensory? Only motor?

Answer 24

Both

Question 25

What dorsal rami are contained in the brachial plexus?

Answer 25

None. Brachial plexus only has ventral rami.

Question 26

Dorsal rami innervate what kind of back muscles?

Answer 26

True or intrinsic back muscles.

Question 27

Dorsal roots. Afferent or efferent?

Answer 27

Afferent sensory

Question 28

Ventral roots. Afferent or efferent?

Answer 28

Efferent motor.

Question 29

Cell bodies of afferent neurons live where?

Answer 29

Dorsal Root Ganglion

Question 30

Cell bodies of efferent neurons live where?

Answer 30

Anterior gray horn of spinal cord

Question 31

Where should you do a spinal tap?

Answer 31

Below L2

Question 32

What level does the conus medullaris end, and the filum terminale begin?

Answer 32

L1/L2

Question 33

What is the filum terminale composed of?

Answer 33

Pia mater

Question 34

What spinal level is this at?

Question 35

What level is this at?

Answer 35

Above L1/L2

See how theres a spinal cord

Question 36

What spinal nerve comes off ABOVE this?

Answer 36

This is the axis (C2) so therefore spinal nerve C2 comes off above it. C3 comes off below it.

Question 37

What ligament is (2)

Answer 37

Interspinous ligament

Question 38

What ligament is (1)

Question 40

What ligament does the supraspinous ligament turn into, as you move superiorly?

Answer 40

Ligament nuchae

Question 41

How many pairs of spinal nerves are there?

Answer 41

31

8 cervical

12 thoracic

5 lumbar

5 sacral

1 coccygeal