PHYSIOLOGY
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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biceps femoris
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semimembranosus
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semitendinosus
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All of the answers are correct.
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Detailed explanation-1: -The knee flexors include the set of hamstrings, gracilis, sartorius, gastrocnemius, plantaris, and popliteus . Most of these knee flexors also internally or externally rotate the knee. The hamstring muscles are the primary knee flexors.
Detailed explanation-2: -At the knee joint, flexion and extension are the main movements, which are caused by the quadriceps group of muscles. This group consists of four muscles – rectus femoris, vastus medialis, vastus intermedius and vastus lateralis – and is located on the anterior thigh.
Detailed explanation-3: -The one muscle that extends the knee is the massive quadriceps. We saw it briefly in the last section. We’ll take a better look at it now. The main flexors of the knee are the so-called hamstring muscles, semi-membranosus, semitendinosus, and biceps femoris.