Semitendinosus

M. semitendinosus

Long muscle forming the caudal border of the thigh, between the biceps femoris and the semimembranosus.

Draft, not yet reviewed by a veterinarian. Content may contain errors. It is published so the community can review it.

This piece is a schematic shape, not a scan: there is no freely licensed model for this structure yet.

3D model of this piece: Vet Atlas procedural musculature, CC BY-SA 4.0

Origin

Ischiatic tuberosity (tuber ischiadicum).

Medial surface of the proximal tibia.

Extends the hip and flexes the stifle.

Sciatic nerve (n. ischiadicus).

The sciatic nerve runs between the biceps femoris and the caudal thigh muscles. Intramuscular injections into this region are not recommended in the cat.
Fibrotic myopathy of this muscle, typical of German Shepherd dogs, is only exceptionally reported in the cat.