synaptic transmission

Question 1

what is synaptic transmission

Answer 1

• process where neurones communicate with each other

- sends chemical messages across the gap (synapse)

Question 2

signals within the neurone are

Answer 2

electrically transmitted

Question 3

signals between the neurone are

Answer 3

chemically transmitted (across synapse)

Question 4

chemical transmission is

Answer 4

• neurones communicate with each other in groups (neural networks)
• each is separated from the next by the synapse

Question 5

electrical impulse

Answer 5

when it reaches the end of neurone (pre-synaptic terminal) it triggers the release of neurotransmitters from tiny sacs (synaptic vessel)

Question 6

neurotransmitter

Answer 6

• chemicals that diffuse across the synapse to next neurone
• taken up by post synaptic receptor (aka dendrites)
• chemical messages convert back to electrical

Question 7

excitation is

Answer 7

when neurotransmitters increase the +ve charge of post synaptic neurone
electrical impulse will occur
caused by serotonin

Question 8

inhibition is

Answer 8

when neurotransmitter increases the -ve charge of the post synaptic neurone
electrical impulse will not occur
caused by adrenaline