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When an impulse enters a neuron, it is received by the __________ and passed to the next cell via the ____________.

Allergy medication often causes feelings of sleepiness because of the medication’s role as a(n) __________.

Infusion of the transmitter substance __________ induces wakefulness.

Galvani’s experiment involving a frog leg proved that __________.

The process by which similarly charged particles repel each other and are thus distributed throughout a medium is termed __________.

Administration of a drug that binds at a postsynaptic site different from that of the neurotransmitter and facilitates the opening of ion channels would be termed a(n) __________.

Which of the following is a consequence of the activity of the sodium-potassium transporters?

Which of the following is a consequence of the activity of the sodium-potassium transporters?

Luigi Galvani removed a nerve and its attached muscle fibers from a frog and showed that __________ of the nerve caused __________ of the muscle.

Administration of a drug that binds at a postsynaptic site different from that of the neurotransmitter and facilitates the opening of ion channels would be termed a(n) __________.