Chapter 16: The Spinal Cord

Question 1

The regions of the spinal cord are… (just focus on first 4)

Answer 1

1. Cervical
2. Thoracic
3. Lumbar
4. Sacral
5. Coccygeal

Question 2

Spinal cord enlargements are…

Answer 2

areas located in the cerical and lumbosacral regions of the spinal cord in which there are just simply more neuron cell bodes in those areas simply because of the neural demand (amount of nerves needed) to properly innervate the areas of the upper and lower body. (You need lots of nerves to use your hands and legs).

Question 3

The tapering end (usually at the level of the first lumbar vertebra) that is the inferior end of the spinal cord is known as…

Answer 3

Conus medullaris

Question 4

The nerve roots that project inferiorly from the spinal cord are known as the…

Answer 4

cauda equina

Question 5

Identify 1 and 2 in the photo

Answer 5

1. Conus medullaris
2. Cauda Equina

Question 6

The film strand of pia matter, located within the cauda equina, which helps anchor the conus medullaris to the coccyx is known as the…

Answer 6

Filum terminale

Question 7

Identify 1-3

Answer 7

1. Conus medullaris
2. Cauda Equina
3. Filum Terminale

Question 8

The meninges of the spinal cord from superficial to deep are…

Answer 8

1. Spinal dura mater
2. Spinal arachnoid matter
   
   1. Subarachnoid space
3. Spinal pia matter

*just superficial to the spinal dura mater is the epidural space*

Question 9

Identify 1-4

Answer 9

1. Spinal dura mater
2. Spinal arachnoid mater
3. Subarachnoid space
4. Spinal pia matter

Question 10

The spinal cord is protected and encapsulated by protective layers that are continuous with the cranial meninges known as..

Answer 10

Spinal cord meninges

Question 11

The space which lies between the dura mater and the periosteum covering the inner walls of the vertebra that houses areolar connective tissue, adipose connective tissue, and blood vessels is known as..

Answer 11

Epidural Space

Question 12

CSF is found within what SPACE?

Answer 12

Subarachnoid space

Question 13

Correctly label the spaces 1-3

Answer 13

1. Epidural Space
2. Subdural space
3. Subarachnoid space

Question 14

Number 1 and 2 are indicating what types of matter (white or gray)?

Answer 14

1. White
2. Gray

Question 15

Lateral horns of gray matter are only present in what portion of the spinal cord?

Answer 15

T1-L2

Question 16

Gray matter contains various neuron cell bodes known as…

Answer 16

Nuclei

Question 17

Correctly identify 1-3 (horns)

Answer 17

1. Dorsal Horn
2. Lateral Horn (only in T1-L2)
3. Ventral Horn

Question 18

Correctly identify 1-2

Answer 18

1. Gray commissure
2. Central Canal

Question 19

This picture is concerned with the white matter of the spinal cord. Identify 1-6

Answer 19

1. Posterior median sulcus
2. Lateral Funiculus
3. Anterior Median Fissure
4. Ventral Funiculus
5. Anterior (or white) commissure
6. Dorsal Funiculus

Question 20

identify 1-4

Answer 20

1. Posterior Funiculus
2. Lateral Funiculus
3. Anterior Funiculus
4. Anterior median fissure

Question 21

bundles of axons (remember this is white matter) carrying specific types of information from a common origin to a common destination are known as…

Answer 21

White matter Tracts

Question 22

Tracts of the spinal cord can be divided into two main categories…

Answer 22

Motor and Sensory.

Question 23

The axons of sensory neurons and the cell bodies of interneurons are housed within what horn of the spinal cord?

Answer 23

Posterior horn

Question 24

The horn which primarily houses the cell bodies or somatic motor neurons that innervate skeletal muscle is…

Answer 24

Anterior horns

Question 25

Why do the lateral horns only appear in T1-L2?

Answer 25

The lateral horns are an extra structure of those vertebrae because they contain the cell bodies of autonomic motor neurons which innervate cardiac muscle, smooth muscle, and glands.

Question 26

White matter of the spinal cord is partitioned into three regions that resemble columns known as…

Answer 26

Funiculus (Funiculi)