Semitendinosus muscle
Last revised by Dr Yuranga Weerakkody ◉ on 09 Jul 2021
Citation, DOI & article data
Citation:
Hacking, C., Weerakkody, Y. Semitendinosus muscle. Reference article, Radiopaedia.org. (accessed on 25 Sep 2022) https://doi.org/10.53347/rID-40243
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rID:
40243
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11 times by 6 users - see full revision history
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Synonyms:
- Semitendinosus
The semitendinosus is a fusiform muscle in the posterior compartment of the thigh and hamstrings muscles. It is often divided into two parts by a tendinous inscription 2. It accompanies the semimembranosus muscle in the medial aspect of the posterior thigh. It is named for its cord-like tendon which forms half way down the thigh.
Summary
- origin: ischial tuberosity
- insertion: as part of the pes anserine tendon, onto the medial superior tibia
-
action
- flexes knee joint
- medially rotates knee joint (when the knee is flexed beyond 90°)
- extends hip joint (less than biceps femoris)
-
arterial supply
- inferior gluteal artery
- perforating arteries
- popliteal artery
- innervation: tibial nerve
- antagonist: quadriceps
Quiz questions
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References
- 1. Moore KL, Agur AMR, Dalley AF. Clinically oriented anatomy. LWW. ISBN:1451119453. Read it at Google Books - Find it at Amazon
- 2. A. D. van der Made, T. Wieldraaijer, G. M. Kerkhoffs, R. P. Kleipool, L. Engebretsen, C. N. van Dijk, P. Golanó. The hamstring muscle complex. (2015) Knee Surgery, Sports Traumatology, Arthroscopy. 23 (7): 2115. doi:10.1007/s00167-013-2744-0
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