AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

NEUROTRANSMISSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements concerning the propagation of action potentials is NOT correct?
A
Saltatory conduction occurs in myelinated nerve fibers
B
During conduction of an action potential, current flows from the active area of the membrane to the adjacent inactive area, thereby decreasing the potential in the inactive area to threshold
C
Action potential propagation is faster in myelinated fibers than in unmyelinated ones
D
Action potential propagation is faster in large-diameter fibers than in small-diameter ones.
E
Action potential propagation is faster for stronger stimuli than weaker stimuli
Explanation: 

Detailed explanation-1: -The correct answer is c. An action potential, once started, cannot be stopped or negated.

Detailed explanation-2: -Which of the following statements concerning the rate of action potential propagation is true? It is faster in myelinated axons than in nonmyelinated axons.

Detailed explanation-3: -based on the given question, the correct answer that is not accurately described events involved in the propagation of an action potential is that there is an initial influx of the sodium ions through a small cluster you have through small cluster channels that causes US locker the polarization of the membrane.

Detailed explanation-4: -Axon – The long, thin structure in which action potentials are generated; the transmitting part of the neuron.

There is 1 question to complete.