Ch 13 The Spinal Cord/Spinal Nerves

Question 1

What are the 4 protective barriers of the Spinal Cord?

Answer 1

1. Vetebral Column and Cranium
2. Meninges
3. Cerebrospinal Fluid
4. Blood Brain Barrier

Question 2

What are the 3 layers of the meninges that encircle the spinal cord and brain (outer to inner order)

Answer 2

• Dura Mater
• Arachnoid Mater
• Pia Mater

Question 3

Which layer of the meninges is the thick layer and is a “tough mother”

Answer 3

Dura Mater

Question 4

which layer of the meninges is spider like

Answer 4

Arachnoid Mater

Question 5

Which layer of the meninges is the “soft mother”

Answer 5

Pia Mater

Question 6

where can the CSF be found in the meninges?

Answer 6

Between the dura mater and the archnoid mater

Question 7

Whats the function of the CSF?

Answer 7

Acts as a cushion for spinal cord and brain

Question 8

To what portion of the spine does the spinal cord end at?

Answer 8

L1

Question 9

To what portion of the spine does the spinal cord end at for newborns?

Answer 9

L4

Question 10

What is conus medullaris?

Answer 10

When the spinal cord tapers and ends at L1

Question 11

This spinal cord anatomy is the extension of the pia mater that fuses with the arachnoid and dura mater to anchor the spinal cord to the coccyx?

Answer 11

Filum Terminale

Question 12

which spinal root is responsible for sensory?

Answer 12

Posterior Root

Question 13

which spinal root is responsible for motor?

Answer 13

Anterior Root

Question 14

The nerve roots connect to this type of matter that is central and is butterflies shaped?

Answer 14

Grey Matter

Question 15

The nerve root that attaches to this type of matter deals with peripheral nerves?

Answer 15

White Matter

Question 16

Which matter communicates with spinal tracts to the brain?

Answer 16

White Matter

Question 17

How many pairs of spinal nerves does the cervical region have

Answer 17

8

Question 18

How many pairs of spinal nerves does the Thoracic region have

Answer 18

12

Question 19

How many pairs of spinal nerves does the Lumbar region have

Answer 19

5

Question 20

How many pairs of spinal nerves does the Sacral region have

Answer 20

5

Question 21

How many pairs of spinal nerves does the coccygeal region have

Answer 21

1

Question 22

Define

This is the area of skin that provides sensory information to a specific spinal level

Answer 22

Dermatomes

Question 23

what is it called when a network of axons come together

Answer 23

Plexus

Question 24

what are the regions of the plexuses

Answer 24

1. Cervical
2. Brachial
3. Lumbar
4. Sacral
5. Cocygeal

Question 25

what nerve causes the diaphram to contract?

Answer 25

Phrenic Nerve

Question 26

where can the cervical plexus be found in the spine

Answer 26

From C1-C5

Question 27

where is the phrenic nerve found

Answer 27

From C1-C5

Question 28

Where can you find the bracial plexus?

Answer 28

From C5-T1

Question 29

Which plexus provides nerve distributions for the upper extremities

Answer 29

Brachial Plexus

Question 30

what is thoracic outlet syndrome

Answer 30

compression of brachial plexus, or vascular compression

Question 31

What region of the spine does the Lumbar plexus reside?

Answer 31

L1-L4

Question 32

What parts/organs does the lumbar plexus supply

Answer 32

1. Abdomen 2. External Genitalia 3. Parts of lower limb

Question 33

what region of the spine does the sacral plexus reside

Answer 33

S1-S4

Question 34

what parts of the body does the sacral plexus supply

Answer 34

1. Buttocks 2. Perineum 3. Lower Limb

Question 35

where does the coccygeal plexus reside

Answer 35

S4, S5, & Coccygeal

Question 36

what region does the coccygeal plexus supply

Answer 36

Coccygeal

Question 37

which tracts are considered acending tracts?

Answer 37

Sensory tracts

Question 38

which tracts are considered descending tracts

Answer 38

Motor tracts

Question 39

where is the reflex arch for Biceps reflex

Answer 39

C5

Question 40

where is the reflex arch for Brachiradialis reflex

Answer 40

C6

Question 41

where is the reflex arch for Triceps reflex

Answer 41

C7

Question 42

where is the reflex arch for Patellar reflex

Answer 42

L2-L4

Question 43

where is the reflex arch for Achilles reflex

Answer 43

S1

Question 44

This traumatic causes all function to be lost below level of injury

Answer 44

complete transection

Question 45

This degeneratice disease is when the immune system attacks the neurolemma of nerves

Answer 45

Multiple sclerosis

Question 46

the degenerative disease is called "Lou Gehrig's disease" and when motor neurons are attacked : results in weakness & atophy

Answer 46

Amyotrophic Lateral Sclerosis

Question 47

This disease is an acute infection of the peripheral nerve that comes from the spinal nerve, usuall caused by herpes zoster

Answer 47

Shingles