the spinal cord

Question 1

what is the spinal cord surrounded by?

Answer 1

bone

Question 2

what is meninges

Answer 2

3 layers of connective tissue
additional protection

Question 3

what is the outer layer of the spinal cord called?

Answer 3

dura mater

Question 4

what is the middle layer of the spinal cord called?

Answer 4

arachnoid mater

Question 5

what is the inner layer of the spinal cord called?

Answer 5

pia mater

Question 6

where does the spinal cord meninges lead to

Answer 6

its continuous with the brain meninges

Question 7

what is the epidural space filled with?

Answer 7

fat and C.T.

Question 8

where is the epidural space

Answer 8

lies between dura mater and vertebral column

Question 9

what is the arachnoid mater like?

Answer 9

web-like arrangement of collagen and elastic fibres

Question 10

what is the pia mater made of

Answer 10

transparent layer of collagen and elastic fibres

Question 11

which layer of the spinal cord contains blood vessels

Answer 11

the pia mater layer
inner layer

Question 12

how long is the spinal cord

Answer 12

ranges from 42-45cm

Question 13

what nerves form the cauda equina

Answer 13

nerves from the lumbar, sacral and coccygeal regions

Question 14

what is anterior

Answer 14

somatic motor neurons

Question 15

what is posterior

Answer 15

sensory neurons
somatic & autonomic

Question 16

what neurons are lateral

Answer 16

autonomic motor neurons

Question 17

if the sensory neuron is ascending tracts what does this mean

Answer 17

carry information towards brain

Question 18

if the motor neuron is descending tracts what does this mean?

Answer 18

carry information down spinal cord

Question 19

how many of bundles of axons does the spinal nerves have

Answer 19

2 bundles
roots

Question 20

what is the dorsal root

Answer 20

only sensory axons

Question 21

what is the ventral root

Answer 21

axons of somatic & autonomic motor neurons