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- semitendinosus muscle [indicated at the tendon]
- semimembranosus muscle [probe; semitendinosus muscle retracted ]
- long head of biceps femoris muscle
- adductor magnus muscle, hamstring part [probe; semimembranosus muscle held by the retractor]
All of these muscles arise from a common origin on the ischial tuberosity.
Note: All of these muscles are innervated by the sciatic nerve, which has two divisions - the tibial division and the common peroneal
(or fibular) division. It is specifically the tibial division of the sciatic nerve which supplies the hamstring group of muscles.
Links and References:
Grant's: 5.33
Netter (1ed.): 472 (2ed.): 468
Rohen/Yokochi: 430 and 455