nervous system parts

Question 1

how many spinal nerve pairs

Answer 1

31

Question 2

the terminal end of the spinal cord

Answer 2

conus medularis

Question 3

The spinal cord is anchored distally by the

Answer 3

filum terminale

Question 4

bundle of intradural nerve roots at the end of the spinal cord

Answer 4

cauda equina

Question 5

spinal cord expansion that corresponds to the arms

Answer 5

cervical enlargement

Question 6

widened area of the spinal cord that gives attachment to the nerves which supply the lower limbs

Answer 6

lumbosacral enlargement

Question 7

______ and _____ roots fuse to form the spinal nerve

Answer 7

posterior and anterior

Question 8

located on posterior rootlet but not anterior rootlet

Answer 8

posterior root ganglia

Question 9

extends from the conus medullaris in the lumbar spine to the caudal angle of the fourth ventricle and is lined by a single layer of columnar ependymal cells

Answer 9

central canal

Question 10

horns of the spinal cord (3)

Answer 10

posterior, lateral, and anterior gray horns

Question 11

part of spinal area which is situated in front of the central canal of the spinal cord (connects the posterior or anterior horns)

Answer 11

gray commissure

Question 12

bundle of white matter surround gray matter horns in spinal cord, each named by location (3)

Answer 12

posterior, lateral, and anterior funiculus

Question 13

thin layer that’s held tightly — like shrink wrap — to the surface of your brain and spinal cord

Answer 13

pia mater

Question 14

between the arachnoid layer and the pia mater (CSF lives here)

Answer 14

subarachnoid space

Question 15

meningeal membrane layer situated between the dura mater and the pia mater

Answer 15

arachnoid mater

Question 16

tough outermost meningeal membrane enveloping the brain and spinal cord

Answer 16

dura mater

Question 17

right under dura mater and above arachnoid mater

Answer 17

subdural space

Question 18

the potential space between the periosteum lining the vertebral canal and the spinal dura mater (fat filled)

Answer 18

epidural space

Question 19

a deep midline groove of the anterior/ventral spinal cord

Answer 19

anterior median fissure

Question 20

posterior groove running along dorsal side of the spinal cord

Answer 20

posterior median sulcus