Receptors

Multiple Choice

Receptors

A) may be either a specialized ending of an afferent neuron or a special cell closely associated with the peripheral ending of an afferent neuron.
B) are present for every modality in the environment.
C) when stimulated bring about opening of Na⁺ channels in the afferent neuron membrane adjacent to the receptor.
D) two of these answers.
E) all of these answers.