This section is from the book "The Horse - Its Treatment In Health And Disease", by J. Wortley Axe. Also available from Amazon: The Horse. Its Treatment In Health And Disease.
A flat four-sided muscle situated beneath the skin in the inner aspect of the thigh, which it wholly covers.
Origin. - From the under surface of the pelvis along the side of the ischio-pubic symphysis, where its fibres interlace with those of its fellow on the opposite side.
Insertion. - Into the internal straight ligament of the patella and the internal face of the tibia.
Action. - To adduct the leg and brace up the fibrous investment of the leg (tibial aponeurosis).
This muscle is attached to the sartorius in front.
 
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