Activity 1: Anatomy of the Spinal Cord and Identifying Structures of the Spinal Cord

Helpfulness: 0
Set Details Share
created 3 years ago by Zajdab
132 views
updated 3 years ago by Zajdab
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

The spinal cord is a continuation of what and acts as what type of center?

Continuation of the brain and acts as a communication center.

2

The spinal cord plays a major role in what type of activity and provides neural pathways to and from the ____?

Plays a major role in spinal reflex activity and provides neural pathways to and from the brain.

3

What canal encloses the spinal cord?

Enclosed within the vertebral canal of the spinal column.

4

The spinal cord extends from which feature of the skull to which vertebra?

Extends from the foramen magnum of the skull to the first or second lumbar vertebra.

5

The spinal cord terminates in what cone-shaped feature?

Conus medullaris.

6

How are the brain and spinal cord similar in regards to cushioning and protection?

Cushioned and protected by meninges.

7

What 2 maters extend beyond the conus medullaris and where do they terminate?

1. dura mater

2. arachnoid mater

Extends to the level of S2 vertebra.

8

What is the filum terminale?

Fibrous extension of the pia mater.

9

The filum terminale extends far into which canal?

Coccygeal canal

10

What are saw-toothed shelves of pia mater?

Denticulate ligaments

11

The denticulate ligaments secure what to what?

Secure the spinal cord to the dura mater.

12

What fluid extends beyond the end of the spinal cord?

CSF

13

Where is the lumbar puncture performed?

Below L3 vertebra.

14

In humans, how many pairs of spinal nerves serve the body?

31 pairs

15

The 31 pairs of spinal nerves arise from what and pass through what to serve the body?

Arise from the spinal cord and pass through intervertebral foramina to serve the body.

16

How wide is the spinal cord?

About the width of a thumb.

17

Although the spinal cord is generally about the width of a thumb, it enlarges in what 2 areas?

1. Cervical area

2. Lumbar area

18

The cervical area have nerves for what limbs?

Upper limbs

19

The lumbar area have nerves for what limbs?

Lower limbs

20

What is the consequence for lumbar and sacral spinal nerve roots since the spinal cord does not extend to the end of the vertebral column?

The lumbar and sacral spinal nerve roots must travel through the vertebral canal for some distance before exiting at the appropriate intervertebral foramina.

21

The collection of spinal nerves, lumbar and sacral spinal nerves, passing through the inferior end of the vertebral canal is called what collectively?

Cauda equina

22

T/F. The spinal cord is not vulnerable to traumatic injuries like automobile accidents because it is protected by meninges and CSF.

False.

23

When a certain region of the spinal cord is damaged, what happens in regard to motor and sensory functions for that particular region and lower regions?

Motor and sensory functions are lost in areas normally served by that region and lower regions.

24

Injury to certain spinal cord areas may result in permanent flaccid paralysis of both legs. What is this disability called?

Paraplegia

25

Injury to certain spinal cord areas may result in permanent flaccid paralysis of all four limbs. What is this disability called?

Quadraplegia

26
card image

Identify the blanks.

card image
27

The dorsal horns of gray matter contain PRIMARILY what neuron type and the axons of what neuron type?

Contain primarily interneurons and the axons of sensory neurons.

28

The ventral horns of gray matter contain the cell bodies of what neuron type and some ____.

Contain the cell bodies of somatic motor neurons and some interneurons.

29

The lateral horns of gray matter contain the cell bodies of what neuron type of what nervous system?

Contain the cell bodies of motor neurons of the autonomic nervous system.

30

Lateral horns are only present in which 2 regions of gray matter?

1. Thoracic regions

2. Lumbar regions

31

The dorsal root ganglion contain the cell bodies of what neuron type?

Cell bodies of sensory neurons.

32

The ventral root contains the axons of what neuron type?

Axons of motor neurons

33

The dorsal root contains the axons of what neuron type?

Axons of sensory neurons

34
card image

Identify the blanks.

card image
35
card image

Identify the blanks.

card image
36
card image

Identify the blanks.

card image
37
card image

Identify the blanks.

card image
38
card image

Identify the blanks.

card image
39
card image

Identify the blanks.

card image
40
card image

Identify the blanks.

card image
41
card image

Identify the blanks.

card image
42
card image

Identify the numbers below:

9.

26./28.

13.

36.

37.

38.

35.

18.

17.

30.

31./33.

32.

16.

19.

20.

card image