Receptors

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) exist that are specific for every modality in the environment
C) when stimulated enough may cause Na⁺ channels in the afferent neuron membrane to open
D) exist that are specific for every modality in the environment, and when stimulated enough may cause Na⁺ channels in the afferent neuron membrane to open.
E) all of these