Action potentials are related to impulses conducted along an axon in that
A)many impulses are required to cause one action potential.
B)active transport of Na⁺ and K⁺ are required for impulse conduction but not for an action potential.
C)impulses are stronger responses than are action potentials.
D)propagation of a series of action potentials along a nerve fiber constitutes an impulse.

Question

Action potentials are related to impulses conducted along an axon in that
A)many impulses are required to cause one action potential.
B)active transport of Na⁺ and K⁺ are required for impulse conduction but not for an action potential.
C)impulses are stronger responses than are action potentials.
D)propagation of a series of action potentials along a nerve fiber constitutes an impulse.

Quizplus · Accepted Answer

Propagation of a series of action potentials along a nerve fiber constitutes an impulse. An impulse is a wave of depolarization that travels along the axon, and it is composed of a series of action potentials. Active transport of Na⁺ and K⁺ is required for both impulse and action potential conduction. One impulse is made up of multiple action potentials. Therefore, option D is the best choice. Option A and B are incorrect as they provide incorrect information. Option C is incorrect as it implies that action potentials are weaker than impulses, which is not true.

Action Potentials Are Related to Impulses Conducted Along an Axon In