Georgio is jogging barefoot along the beach when he suddenly steps on the sharp edge of a broken shell. He instantly feels pain due to the message carried to his brain by _____. He then slowly walks home with an achy foot. The message of the ache is carried by
A) myelinated axons.
B) myelinated dendrites.
C) unmyelinated dendrites.
D) unmyelinated axons.

Question

Quizplus · Accepted Answer

D  The initial sharp pain is transmitted quickly to the brain by myelinated axons, which conduct signals rapidly. The slower, lingering ache is carried by unmyelinated axons, which conduct signals more slowly.

Georgio Is Jogging Barefoot Along the Beach When He Suddenly