Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 39.5, Problem 1TC

John comes to the emergency room with neither voluntary movement nor feeling in his legs. The ER physician pricks his leg with a pin and finds that his leg still withdraws from the pain. How can John have a normal pain-withdrawal reflex but feel no pain?

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