action potential and neurotransmission

Question 1

aquaporin

Answer 1

embedded protein pores that facilitate free transmembrane flow of water

Question 2

depolarization

Answer 2

Na+ channels open, Na+ enters the cell

Question 3

repolarization

Answer 3

K+ channels open, K+ exits the cell

Question 4

hyperpolarization

Answer 4

too much K+ leaves the cell

Question 5

Na+/K+ pump

Answer 5

re-establishes resting potential after action potential

Question 6

saltatory conduction

Answer 6

the process of action potential happening faster because of myelinated axons

Question 7

absolute refractory period

Answer 7

not able to conduct another action potential

Question 8

relative refractory period

Answer 8

another action potential is possible, but unlikely

Question 9

when will neurotransmission occur?

Answer 9

it will only take place if calcium channels are activated and change docking protein structure so membrane & vesicle fuse

Question 10

what forms a fusion pore

Answer 10

embedded proteins in the vesicle and pre-synaptic membrane fuse to form a fusion pore

Question 11

dendrite

Answer 11

has no golgi, no nucleolus, has a studded surface and is a receptive element

Question 12

axon

Answer 12

sends info, is myelinated, has nodes of ranvier