Nerves 1

Question 1

AFFERENT

Answer 1

A sensory neurones that transmits signals TO CNS

Question 2

EFFERENT

Answer 2

Sensory neurones that transmits information from CNS to periphery

Question 3

Ascending tracts

Answer 3

Relay sensory information

Question 4

Descending tracts

Answer 4

Relay motor information

Question 5

Inter neuron

Answer 5

Creates a reflex arc between sensory and motor nerves

Question 6

What 3 senses make up the afferent sensory nerves

Answer 6

Somatic, special, visceral

Question 7

Give examples for each afferent sense

Answer 7

Somatic= skin and joints
Special= sight and hearing
Visceral=internal organs

Question 8

Name the muscle connected to the efferent motor nerve in the somatic nervous system

Answer 8

Skeletal muscle

Question 9

Name the 3 things connected to the efferent motor nerves in the autonomic nervous system

Answer 9

Cardiac muscle, smooth muscle, glands, enteric nervous system

Question 10

List the cells in the central nervous system

Answer 10

Ventricle, ependymal cells, capillaries, astrocytes, microglial cells, oligodendrocytes, neurons

Question 11

Ventricles

Answer 11

Filled with cerebral spinal fluid

Question 12

Ependymal cells

Answer 12

Line ventricles

Question 13

Capillaries

Answer 13

Blood vessels

Question 14

Neurons

Answer 14

Transmission of information

Question 15

Astrocyte

Answer 15

Type of glial cell, supports neurons and forms BBB

Question 16

Microglial cell

Answer 16

Immune system within CNS, phagocytic

Question 17

Oligodendrocytes

Answer 17

Myelinate multiple axons in the CNS

Question 18

Schwann cells

Answer 18

Myelinate one axon in the PNS

Question 19

Ependyma

Answer 19

Specialised epithelial cells that line the ventricular system

Question 20

State the differences between Schwann cells and oligodendrocytes

Answer 20

S.cells have an outer neurolemma while oligo have outer plasma membrane
S.cells Myelinate single axons and have a pathway for axons to regenerate if injured

Question 21

What protects the CNS

Answer 21

BBB, bone and the three membranes between brain and skull ( meninges)

Question 22

What makes up the neuron

Answer 22

Dendrite, cell body (soma), axon hillock, axon

Question 23

What is the main roles of the CNS

Answer 23

Memory, maintain body functions, control breathing and heartrate

Question 24

What is the PNS important for

Answer 24

Transmit information between CNS and periphery
Detect peripheral information and send to brain for processing and send directions from brain to target