Diffusion, degradation, and re-uptake all describe the mechanisms of Blank______.Multiple choice question.removing neurotransmitters from the synaptic cleftsodium and potassium movementpropagation of action potentialsreleasing neurotransmitters from presynaptic terminals

In presynaptic facilitation, the amount of neurotransmitter releases from the presynaptic terminal is Blank______.Multiple choice question.decreasedincreased

Each presynaptic terminal contains _________blank, which contain the neurotransmitter _________blank that, when released, cause ligand-gated Na+ channels to open in the motor end-plate. This causes _________blank in the muscle cell.Multiple Choicesynaptic vesicles; acetylcholine; depolarizationproteins; acetylcholine; repolarizationmitochondria; acetylcholinesterase; depolarizationACh receptors; acetylcholinesterase; repolarization

Presynaptic inhibition Blank______ the amount of neurotransmitter released from the presynaptic terminal.Multiple choice question.reducesincreases

Within a chemical synapse, the receptors Blank______.Multiple choice question.are only responsive to changes in voltageare always degraded by enzymes in order disable thembind to a variety of different ligandsbind to very specific ligands

When traveling along an axon, the cell membrane immediately ahead of an action potential depolarizes because of _________blank.Multiple Choicethe sodium/potassium pumpmembrane receptorsdiffusion of sodium currentdecreased membrane permeabilitypotassium efflux