There are three hamstring muscles:
- Semitendinosus.
- Semimembranosus.
- Biceps femoris.
What are the 4 hamstring muscles?
The semitendinosus, semimembranosus, and biceps femoris muscles comprise the hamstring muscle group.
What are the 3 hamstring muscles called and what action does the hamstring perform?
The three muscles of the posterior thigh (semitendinosus, semimembranosus, biceps femoris long & short head) flex (bend) the knee, while all but the short head of biceps femoris extend (straighten) the hip.
