Tom lightly touches Jane's back with two sharp pins but Jane only feels one sharp point. Why?

A. There is a high density of tactile nerve fibers on the back so she felt a sharp, discriminate pain.
B. Tactile receptors on the back have small receptive fields.
C. The back has fine two-point discrimination.
D. Tactile receptors on the back have large receptive fields.
E. Jane is an insensitive person.


D. Tactile receptors on the back have large receptive fields.

Anatomy & Physiology

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