3.8 PEx: Neurophysiology of Nerve Impulses part 1

Part A

A synaptic cleft, or synaptic gap, can be found between a neuron and ______.
    another neuron.
    a muscle cell.
    a gland.
    All of these.

Part B

The membrane potential that occurs when neurotransmitters bind to their receptors is called _______.
    an action potential and a receptor
    an action potential
    a receptor potential
    a postsynaptic potential

Part C

The release of neurotransmitter occurs _______.
    at the axon terminal
    all along the axon
    from the motor endplate

Part D

Which of the following occurs first?
    An action potential arrives at the axon terminal.
    Extracellular calcium enters the axon terminal.
    Voltage-gated calcium channels are opened.
    Synaptic vesicles exit by exocytosis.