nerves and the nervous system part 1

Question 1

what does the central nervous system involve

Answer 1

brain

spinal cord

Question 2

What are peripheral nerves

Answer 2

bundles of many individual fibres

Question 3

What do peripheral nerves contain

Answer 3

afferent fibres

efferent fibres

Question 4

Afferent fibres

Answer 4

to the brain, sensory

Question 5

efferent fibres

Answer 5

from the brain

Question 6

what does the Peripheral nervous system contain

Answer 6

motor fibres (somatic nervous system) 
fibres to the autonomous nervous system

Question 7

Dorsal

Answer 7

Towards the back

Question 8

Ventral

Answer 8

Towards the front

Question 9

Dorsal root

Answer 9

Carries sensory (afferent) info to the CNS

Question 10

Ventral root

Answer 10

Carries efferent (motor) info to muscles and glands

Question 11

Grey matter

Answer 11

consists of cell bodies of some interneurons and some efferent neurons

Question 12

White matter

Answer 12

consists of axons carrying informations through spinal cord to brain

Question 13

What does the cross section of a spinal cord show

Answer 13

highly organised structures

Question 14

What do the mixed spinal nerves divide in

Answer 14

a dorsal and ventral root

Question 15

what is segmented

Answer 15

the spinal cord

Question 16

what can each segment of the spinal cord be assigned to

Answer 16

A specific part of the body

Question 17

What is an area controlled by one spinal nerve called

Answer 17

dermatome