An 18-Year-Old Soccer Player Is Evaluated for Difficulty Ambulating and Right

An 18-year-old soccer player is evaluated for difficulty ambulating and right thigh pain.  He has no other medical conditions and takes no medications.  On examination, active and passive hip flexion and knee extension are impaired.  Extension, abduction, and adduction at the hip are intact and knee flexion is also intact.  Which of the following muscles is most likely injured in this patient?

A) Biceps femoris long head
B) Psoas muscle
C) Rectus femoris
D) Sartorius
E) Tensor fascia lata

Correct Answer:

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