Paralysis of which of the following would make an individual unable to flex the thigh?
A) biceps femoris
B) iliopsoas and rectus femoris
C) soleus
D) vastus medialis

Question

Quizplus · Accepted Answer

The iliopsoas and rectus femoris muscles are responsible for flexion of the thigh at the hip joint. Paralysis of these muscles would result in an inability to flex the thigh. The biceps femoris and vastus medialis are involved in other movements of the leg and would not directly affect hip flexion. The soleus muscle is involved in plantarflexion (pointing the foot downward) and also would not affect hip flexion.

Paralysis of Which of the Following Would Make an Individual