The interactive dog atlas · Muscles · Hind limb

Semitendinosus musculus semitendinosus

The semitendinosus sits on the rear edge of the thigh, from the pelvis to the lower leg and the point of the hock.

Educational material, not a diagnostic tool. Written by the Mantrailing România team from veterinary sources we read. Updated 14.11.2026.

Dog in left lateral view — exterior, muscles, skeleton and organs Vector study after the Ellenberger, Baum and Dittrich plates: a standing dog, head to the left, deep chest and digitigrade limbs. The four layers use the same contour: exterior with body regions, superficial muscles, skeleton and organs.
Semitendinosus on the atlas drawing, "Muscles" layer. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

The rear edge of the thigh, from the ischium to the tibia and calcaneus.

Layer
Muscles
System
Muscles
Region
Hind limb

What it is and what it does

It arises from the lateral angle of the ischiatic tuberosity, between the biceps femoris and the semimembranosus, and inserts on the medial face of the tibia and on the calcaneus. It extends the hip and hock and flexes the stifle of the free limb; it is one of the main extensors of the hip, so part of the engine of propulsion.

Worth remembering

It extends the hip and hock: it is part of the engine of forward drive.

Names

  • Latin term: musculus semitendinosus.
  • In Romanian: Semitendinosul (Romanian page).

Guides it appears in