Semitendinosus muscle

Last revised by Yuranga Weerakkody ◉ on 9 Jul 2021

Citation, DOI, disclosures and article data

Citation:

Hacking C, Weerakkody Y, Smalberger J, et al. Semitendinosus muscle. Reference article, Radiopaedia.org (Accessed on 29 Sep 2023) https://doi.org/10.53347/rID-40243

DOI:

https://doi.org/10.53347/rID-40243

Permalink:

https://radiopaedia.org/articles/40243

rID:

40243

Article created:

14 Oct 2015, Craig Hacking ◉ ◈

Disclosures:

At the time the article was created Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Last revised:

9 Jul 2021, Yuranga Weerakkody ◉

Disclosures:

At the time the article was last revised Yuranga Weerakkody had no recorded disclosures.

View Yuranga Weerakkody's current disclosures

Revisions:

11 times, by 6 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Anatomy

Tags:

stub, lower limb, knee

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