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.


D

Anatomy & Physiology

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