Nerons

Question 1

Role of neurone

Answer 1

To send and revive messages from other neurones

Question 2

What is a sensory neurone

Answer 2

-Nerve impulse from sensory receptors (5 senses) to CNS
-long dendrites
-short axons

Question 3

Motor neurone

Answer 3

-carries impulses from the CNS to muscles or glands to create movement
-long axon
-short dendrite

Question 4

Relay neurones

Answer 4

Relays info from sensory and motor neurone via the CNS
- short dendrite
-short axon

Question 5

How does the info travel from neurone to neurone

Answer 5

-Gap between neurones is the synapse
-Signal is sent electrically through neurones but chemically over synapse
-so neurotransmitters are released from vesicles and they diffuse across the synapse to the next neurone (post synaptic neurone)
- the post synaptic neurone have specific receptors for specific neurotransmitters


Question 6

SSRI treatment

Answer 6

Depressed people take this to block the reuptake so there’s more time for receptors to bind to neurotransmitters therefore increasing serotonin levels.