Quiz

Question 0

What is function of motor neurones

Answer 0

Produces response to sensory information (perception) to affect change

Question 1

How is nervous system communication different to endocrine?

Answer 1

Faster

Question 2

4 internal sensory neurones

Answer 2

Stretch receptor
Baroreceptor
Osmoreceptor
Chemoreceptors

Question 3

Name 2 branches of autonomic NS and their main action

Answer 3

Sympathetic - fight flight

Parasympathetic- rest digest

Question 4

What do motor neurones in enteric NS do?

Answer 4

Govern motility, secretions

Question 5

What is grey matter made of

Answer 5

Cell bodies

Question 6

What are the little branches at the receiving end of a neuron called?

Answer 6

Dendrites

Question 7

What is main symptom of Bell’s palsy

Answer 7

Sudden facial paralysis

Question 8

What group people most often affected by MS

Answer 8

Women 20-50

Question 9

4 types of neuroglia found in CNS

Answer 9

Astrocytes
Oligodendrocytes
Microglia
Ependymal cells

Question 10

What do ependymal cells do

Answer 10

Make and circulate CSF

Question 11

Which type neuroglia make up BBB

Answer 11

Astrocytes

Question 12

Which neuroglia are phagocytic

Answer 12

Microglia

Question 13

Function of myelin sheath

Answer 13

Insulate neurons - allows faster conduction of nerve impulses

Question 14

Gaps between Schwann cells called

Answer 14

Nodes of ranvier

Question 15

Can CNS nerves regenerate

Answer 15

No, glial cells inhibit growth

Question 16

Describe conditions inside and outside a neurons at resting potential

Answer 16

Outside is rich in Na and Cl
Inside is rich in K and large negative ions
Membrane polarised -70mV

Question 17

What happens during an action potential

Answer 17

Depolarisation - sodium channels open, sodium floods in
Repolarisation- potassium channels open and potassium floods out

Sodium and potassium are now on wrong side of membrane