You must have often heard about the hamstring injury of players. Which of the following is correct about hamstring muscles?
Correct answer: C. Originate from pelvic girdle and top of femur
- A. It is an extensor muscle
- B. Its insertion is on tibia
- C. Originate from pelvic girdle and top of femur
- D. Originate from ilium and femur
Explanation
The hamstring muscles are a group of three muscles located at the back of the thigh. These muscles are involved in the flexion of the knee and extension of the hip. The three muscles of the hamstring group are the biceps femoris, semitendinosus, and semimembranosus.Origin: The hamstring muscles originate from the pelvic girdle, specifically the ischial tuberosity, which is part of the pelvic bone. The biceps femoris also originates from the femur in addition to the pelvic girdle.Insertion: The hamstring muscles insert on the tibia (and fibula in the case of the biceps femoris).Action: They function to flex the knee and extend the hip.Why the other options are incorrect:It is an extensor muscle: The hamstrings are not extensor muscles; they are primarily flexors of the knee and extensors of the hip.Its insertion is on tibia: While the hamstring muscles do insert on the tibia (and fibula for the biceps femoris), this statement alone does not provide a full description of the muscle's origin.Originate from ilium and femur: This is incorrect because the hamstring muscles do not originate from the ilium; they originate from the pelvic girdle (ischial tuberosity) and the femur (for the biceps femoris).
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