The Sartorius muscle - the longest muscle in the human body - is a long thin muscle that runs down the length of the thigh. Its upper portion forms the lateral border of the femoral triangle.
Comment:
[homology-note] "The ambiens of reptiles and the iliotibialis of amphibians are likely homologues of the sartorius.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0001192", ontology="VHOG", source="ISBN:978-0072528305 Kardong KV, Vertebrates: Comparative Anatomy, Function, Evolution (2006) p.391", source="http://bgee.unil.ch/"}; [taxon-note] "No iliotibialis in AAO - M. sartorius has def: 'Originates on the ventral pelvic rim, the pubic region, and the ventral surface of the adductor longus. The insertion bifurcates distally; the ventral portion attaches to the aponeurosis of the cruralis and the dorsal part attaches to the distal attachment of the gracilis major, the semitendinosus, and to the aponeurosis of the cruralis.' [AAO:0010027]"; [taxon-note] "The ambiens of reptiles and the iliotibialis of amphibians are likely homologues of the sartorius. Kardong KV, Vertebrates: Comparative Anatomy, Function, Evolution, Fourth Edition (2006) McGraw-Hill, p.391 [VHOG:0001192]"