Question

1.Which three muscles are associated with the hamstrings (be exact)?

2.Is the Biceps Femoris shorthead a part of the hamstrings? Why or Why Not?

3.Which four muscles are included in the quadriceps group?

4.What is the primary action of the medial thigh muscles?

5.One of the medial thigh muscles crosses over the knee joint. Which muscle is this?

Answer 1

1. The three muscles are: semimembranosus, semitendinosus and biceps femoris.

2. No. Biceps femoris short head is not the part of hamstring because The three 'true' hamstrings cross both the hip and the knee joint and are therefore involved in knee flexion and hip extension. The short head of the biceps femoris crosses only one joint (knee) and is therefore not involved in hip extension. With its divergent origin and innervation it is sometimes excluded from the 'hamstring' characterization.

3. rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

4. The medial compartment of the thigh is frequently called the adductor compartment because the major action of this group of muscles is adduction.

5. Gracilis muscle