Nerves 1

Question 1

Gyrus?

Answer 1

Ridge on the cerebral cortex of the brain

Question 2

Sulcus?

Answer 2

Depression on the cerebral cortex of the brain

Question 3

4 lobes of the cerebrum?

Answer 3

• Frontal
• Occipital
• Temporal
• Perietal

Question 4

What is the diencephalon?

Answer 4

Posterior part of the forebrain

Question 5

What two structures are found in the diencephalon?

Answer 5

• Thalamus

- Hypothalamus

Question 6

3 parts of the brainstem?

Answer 6

• Midbrain
• Pons
• Medulla oblongata

Question 7

Functions controlled by the brainstem?

Answer 7

• Basic functions

- BP, RR

Question 8

Cerebellum function?

Answer 8

• Balance and coordination

Question 9

How many pairs of spinal nerves are there?

Answer 9

31

Question 10

How many cranial nerve pairs are there?

Answer 10

12

Question 11

List the number of nerve pairs from cervical to coccygeal

Answer 11

C - 8
T - 12
L - 5
S - 5
C - 1

Question 12

What is the function of nerves that leave through the ventral root?

Answer 12

Motor

Question 13

Function of nerves that leave through the dorsal root?

Answer 13

Sensory

Question 14

What is a ganglion?

Answer 14

A set of soma outside the spinal cord

Question 15

What makes up the white matter?

Answer 15

Axons

Question 16

What makes up the grey matter?

Answer 16

Soma

Question 17

What is another name for the initial segment of an axon?

Answer 17

Axon hillock

Question 18

What is the function of the axon hillock?

Answer 18

Triggers the action potential if the threshold is reached

Question 19

What happens at the presynaptic terminals?

Answer 19

Neurotransmitter is released

Question 20

What 3 types of neurones dose the somatic nervous system have

Answer 20

• Afferent (sensory)
• Interneurones
• Efferent (motor)

Question 21

What are glia?

Answer 21

Support cells of the CNS

Question 22

What proportion of the CNS is glia?

Answer 22

90%

Question 23

3 types of glial cells?

Answer 23

• Astrocytes
• Oligodendrocytes
• Microglia

Question 24

2 functions of astrocytes?

Answer 24

• Maintain external environment

- Maintain blood brain barrier

Question 25

Function of oligodendrocytes?

Answer 25

- Myelination

Question 26

2 functions of microglia?

Answer 26

Phagocytes for - Dead neurone - Infectious agents