Avi broke his ankle skiing.At first,he felt a sharp and intense pain.The next day,the sharp pain was gone,but his ankle throbbed almost all the time.The sharp,immediate pain was due
To ________;the later,throbbing pain was due to ________.
A) slow fibers;fast fibers
B) fast fibers;slow fibers
C) pain receptors;pressure receptors
D) pressure receptors;pain receptors

Question

Quizplus · Accepted Answer

The sharp, immediate pain was due to fast fibers, which quickly transmit pain signals for acute pain. The later, throbbing pain was due to slow fibers, which are responsible for chronic, dull, and aching pain sensations.

Avi Broke His Ankle Skiing