Of these muscles,the one not involved in extending the leg is the
A)gracilis.
B)rectus femoris.
C)vastus lateralis.
D)vastus medialis.
E)vastus intermedius.

Question

Quizplus · Accepted Answer

The gracilis muscle is primarily involved in adduction of the thigh and does not play a significant role in extending the leg. The other muscles listed (rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius) are all part of the quadriceps femoris group, which is the main muscle group responsible for extension of the knee.

Of These Muscles,the One Not Involved in Extending the Leg