11. Nervous Tissue and Nervous System

During the relative refractory period, a larger-than-normal depolarizing stimulus can __________.

Which of the following statements best describes saltatory conduction?

a. Every section of the axolemma must be depolarized and triggered to generate an action potential.

b. The internodes must generate action potentials.

c. The dendrites and cell bodies propagate EPSPs toward the trigger zone.

d. Only the nodes of Ranvier must generate action potentials.

The ________ is the period of time during which it is impossible to stimulate a neuron to have an action potential, whereas the ________ is the period of time during which a larger-than-normal stimulus is required to elicit an action potential.

What is the functional difference among chemically gated (ligand-gated), voltage-gated, and mechanically gated ion channels?

What factor determines the maximum frequency of action potentials that could be propagated by an axon?