Action Potentials/Neurotransmitters

soma to dendrites

where does a graded potential occur?

axon and axon hillock

where does an action potential occur?

if a suprathreshold stimulus is present

how does an action potential occur?

continuous conduction

action potential that occurs on unmyelinated axons

saltatory conduction

action potential that occurs on myelinated axons

axon terminal

where does exocytosis (aka neurotransmitter release) occur?

voltage gated Ca2+ channels

how is neurotransmitter release triggered?

lipophobic, can be packed in vesicles

what type of ligand are neurotransmitters?

yes

write out steps of action potential

excitatory, located in the neuromuscular junction, autonomic nervous system and central nervous system

what type of neurotransmitter is acetylcholine and where is it located?

excitatory, associated with memory and learning

what type of neurotransmitter is glutamate and what is it associated with?

postsynaptic

all neurotransmitters happen in the () site

excitatory postsynaptic potential

makes the action potential depolarized (more positive)

inhibitory postsynaptic potential

makes the action potential hyperpolarized (more negative)