The spinal cord

Question 1

The spinal cord is located in the

Answer 1

Vertebral canal

Question 2

It is surrounded by 3 meninges

Answer 2

Dura mater
Arachnoid mater
Pia mater

Question 3

Further protection provided by

Answer 3

CSF
located within the subarachnoid space

Question 4

Spinal cord shape

Answer 4

Roughly cylindrical

Question 5

The spinal cord begins superiorly at the _____________, where it is continuous with the _____________

Answer 5

foramen magnum
Medulla oblongata

Question 6

The spinal cord terminates inferiorly in the _______________.
It tapers off into the ________________.

Answer 6

Lumbar region
conus medullaris

Question 7

The filum terminale of the spinal cord

Answer 7

descends from the apex to attach to the back of the coccyx
(it is a prolongation of the pia mater)

Question 8

Question 9

31 pairs of spinal nerves attached by

Answer 9

anterior (motor) roots and posterior (sensory) roots

Question 10

Each root is attached to the cord by a series of ________, which extend the whole length of the corresponding segment of the cord

Answer 10

rootlets

Question 11

Each posterior root possess a

Answer 11

posterior (dorsal) root ganglion (DRG)

Question 12

Cells of DRG give rise to

Answer 12

peripheral and
central nerve fibres (i.e. axons)

Question 13

Ganglion =

Answer 13

collection of nerve cell bodies located outside the CNS

Question 14

Question 15

SPinal cord structure:
Inner core of _________ surrounded by __________

Answer 15

gray matter
white matter

Question 16

Gray matter

Answer 16

= H-shaped in cross-section
Anterior and posterior gray columns (horns) Gray commissure connects the horns
Small central canal located within the gray
commissure

Question 17

White matter is divided into:

Answer 17

Anterior white column (AWC)
Lateral white column (LWC)
Posterior white column (PWC)

Question 18