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Case Report of a Bilateral Absence of the Semimembranosus Muscle
Author(s) -
Morrison Nina,
Hervey Shane,
Runyeon Jon
Publication year - 2016
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.30.1_supplement.1046.11
Subject(s) - posterior compartment of thigh , medicine , biceps , anatomy , biceps femoris muscle , thigh , dissection (medical) , cadaver , pelvis , semitendinosus muscle , hamstring , hamstring muscles , surgery
Bilateral absence of the semimembranosus muscle was discovered during a routine dissection of a 62‐year‐old Caucasian male cadaver. The origination of the semimembranosus muscle is from the posterior superior lateral quadrant of the ischial tuberosity of the pelvis and its insertion is into the posterior surface of the medial condyle of the tibia[2]. Semitendinosus and biceps femoris muscles were observed bilaterally in the posterior compartment of the thigh. The dissection presented hypertrophy in the remaining hamstring muscles—the semitendinosus and biceps femoris. Congenital absence of skeletal muscle in the lower extremity is rare, as few have been reported previously in the literature [1, 2, 3]. Knowledge of muscle variation is important to not only anatomists, but also many types of clinicians when diagnosing and treating patients. Support or Funding Information Department of Human Physiology University of Oregon