nerve and synapse - synaptic transmission

Question 1

1st event in transmission of signal at chemical synapse

Answer 1

transmitter is sythnesized then stored in vesicles

Question 2

2nd event in transmission of signal at chemical synapse

Answer 2

an action potential invades the presynaptic terminal

Question 3

3rd event in transmission of signal at chemical synapse

Answer 3

depolarization of presynaptic terminal causes opening of voltage-gated Ca2+ channels

Question 4

4th event in transmission of signal at chemical synapse

Answer 4

influx of Ca2+ through channels

Question 5

5th event in transmission of signal at chemical synapse

Answer 5

Ca2+ cuases vesicles to fuse with presynaptic membrane

Question 6

6th event in transmission of signal at chemical synapse

Answer 6

transmitter is released into synpatic cleft via excoytosis

Question 7

8th event in transmission of signal at chemical synapse

Answer 7

opening or closing of postsynaptic channels

Question 7

7th event in transmission of signal at chemical synapse

Answer 7

transmitter binds to receptor molecules in postsynaptic membrane

Question 8

9th event in transmission of signal at chemical synapse

Answer 8

postsynaptic current causes excititory or inhibitory postsynaptic potential that changes the excitablity of the psotsynaptic cell

Question 9

10th event in transmission of signal at chemical synapse

Answer 9

removal of nuerotransmitter by gila uptake or enzymatic degration

Question 10

11th event in transmission of signal at chemical synapse

Answer 10

retrieval of vesicular membrane from plasma membrane