SPINAL CORD

Question 1

• it is divided into (R) and (L) halves by anterior and posterior grooves and is composed of nerve cell bodies and of nerve processes extending up or down connecting the brain and the peripheral nerves.

Answer 1

Spinal Cord

Question 2

How many pairs of spinal nerves leaving the spinal cord?

Answer 2

31 pairs of spinal nerves

Question 3

– passes out through an intervertebral foramen at each level on both sides.

Answer 3

Peripheral Nerves

Question 4

Two Roots connecting the Spinal nerve to Spinal cord:

Answer 4

1. Anterior Root
2. Dorsal/Posterior Root

Question 5

They pass out of the skull through the Foramina to end in the various structures of the head and neck.

Answer 5

12 pairs of Cranial nerves

Question 6

Are the covering of the brain and spinal cord.

Answer 6

Meninges

Question 7

Three Layers of Meninges:

Answer 7

Pia Mater
Arachnoid
Dura Mater

Question 8

– is the inner covering and is closely applied to the outer surface of the Brain and Cord.

Answer 8

Pia Mater

Question 9

– is the middle layer which does not dip down into the small fissures and are attached to the Pia Mater by webs of tissue alone.

Answer 9

Arachnoid

Question 10

– is the space between the Pia Mater and the Arachnoid membrane where the CSF circulates.

Answer 10

Subarachnoid space

Question 11

– is the tough other membrane forming the outer covering of the brain and spinal cord.

Answer 11

Dura Mater

Question 12

– carries motor fibers.

Answer 12

Anterior Root

Question 13

– are composed of sensory fibers.

Answer 13

Dorsal/Posterior Root