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 broad, thin muscle extending from the scapula to the elbow, on the inner aspect of the arm.
Origin. - By a broad, thin aponeurotic tendon from the posterior border of the scapula.
Insertion. - Into the superior and posterior part of the olecranon or elbow and into the fascia of the arm.
Action. - To extend the lower on the upper arm, and to tighten the fascia of the fore-arm to give the muscles support.
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