Entry of Blank______ ions into the synaptic knob triggers exocytosis of neurotransmitters.Multiple choice question.chloridecalciumsodiumpotassium

The neurotransmitter at the neuromuscular junction is _____________.Multiple Choiceacetylcholinecholinecalciumsodium

Acetylcholine diffuses across a synaptic cleft and binds to ligand-gated Blank______ channels.Multiple choice question.ironcalciumpotassiumsodium

Diffusion, degradation, and re-uptake all describe the mechanisms of Blank______.Multiple choice question.sodium and potassium movementreleasing neurotransmitters from presynaptic terminalspropagation of action potentialsremoving neurotransmitters from the synaptic cleft

The neurotransmitter at the neuromuscular junction increases permeability of the muscle cell membrane to ____________.Multiple Choicecalcium ionsphosphatesodium ionscholine

During an action potential, depolarization is due to Blank______ ions Blank______ the cell.Multiple choice question.calcium, leavingpotassium, enteringsodium, leavingsodium, enteringpotassium, leaving