Karen just finished an intense weightlifting session. It is likely that she will experience some muscle soreness the following morning due to the
A) ability of some nociceptors to respond to capsaicin.
B) ability of some nociceptors to respond to lactic acid.
C) response of warm fibers to the heat generated by working muscles.
D) opening of mechanically gated channels on some nociceptors.

Question

Quizplus · Accepted Answer

Muscle soreness after exercise is often due to the accumulation of lactic acid, which activates certain nociceptors (pain receptors) in the muscles.

Karen Just Finished an Intense Weightlifting Session