The Rate of Conduction of a Nerve Impulse Depends Upon

Question

The rate of conduction of a nerve impulse depends upon ________.
A) properties of the soma of the neuron
B) the presence or absence of a myelin sheath
C) the number of cell dendrites
D) the type of neurotransmitter present
E) All of the answers are correct.

Accepted Answer

The presence or absence of a myelin sheath greatly affects the rate of conduction of a nerve impulse. Myelin acts as an insulator and allows the impulse to travel faster along the axon. Without myelin, the impulse must jump from node to node, which slows down the process.