Compared to dendrites, axons usually:
A) form the information-receiving pole of the neuron.
B) are shorter than the dendrites.
C) are covered with myelin.
D) taper in diameter toward their periphery.

Question

Quizplus · Accepted Answer

Axons are usually covered with myelin, which helps to speed up the transmission of nerve impulses along the length of the axon. Dendrites, on the other hand, are usually not myelinated and are responsible for receiving incoming signals from other neurons or sensory receptors. Therefore, option C is the best choice. Options A and D are incorrect because axons generally form the information-sending pole of the neuron and do not taper in diameter towards their periphery. Option B is incorrect because axons are often longer than dendrites.

Compared to Dendrites, Axons Usually