Days after breaking his nose in a football game,Ben still perceives a dull pain in his nose.The throbbing ache travels along _____ pain fibers,which are _____.
A) slow; unmyelinated
B) slow; myelinated
C) fast; unmyelinated
D) fast; myelinated

Question

Quizplus · Accepted Answer

Slow pain fibers are unmyelinated, which means that they conduct pain signals slower than myelinated fibers. Therefore, the dull pain perceived by Ben after breaking his nose is most likely carried by slow, unmyelinated pain fibers.

Days After Breaking His Nose in a Football Game,Ben Still