Question

the only knee flexor that originates superior to the acetabulum is the
gracilis.
semimembranosus.
biceps femoris.
sartorius.
iliopsoas.

Explanation:

• Gracilis: Originates from the pubis, not superior to the acetabulum.
• Semimembranosus: Originates from the ischial tuberosity, not superior to the acetabulum.
• Biceps femoris: Long head originates from the ischial tuberosity, short head from the linea aspera, not superior to the acetabulum.
• Sartorius: Originates from the anterior superior iliac spine (superior to the acetabulum) and is a knee flexor.
• Iliopsoas: Is a hip flexor, not a knee flexor.

Answer:

sartorius.