A runner collapses during a race and is examined by a doctor. They have lost the ability to plantar flex at the ankle. Which of the following is probably the injured muscle?
A)Gastrocnemius
B)Biceps femoris
C)Semimembranosus
D)Tibialis anterior

Question

Quizplus · Accepted Answer

The ability to plantar flex at the ankle is governed by the muscles in the posterior compartment of the leg, including the gastrocnemius and soleus. The gastrocnemius is the primary plantar flexor muscle and is therefore the most likely muscle to be injured if the individual has lost this ability. Therefore, option A is the best choice.

A Runner Collapses During a Race and Is Examined by a Doctor