External abdominal oblique

Musculus obliquus externus abdominis

Compresses the abdomen and flexes the trunk.

System
Muscle
Region
Pelvis
Sides
Paired: left and right
External abdominal oblique (Musculus obliquus externus abdominis) of the pig, left side: a three-quarter view of the muscle.

Where it runs from and to

A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.

Origin
Lateral surfaces of the caudal ribs and the thoracolumbar fascia.
Insertion
Linea alba, the prepubic tendon and the tuber coxae by a broad aponeurosis.
Action
Compresses the abdomen and flexes the trunk.
Nerve
Ventral branches of the caudal thoracic and the lumbar nerves.

Written for Vetomica in its own words from the standard reference anatomy of the pig; the books it was checked against are listed below.

Terminology

English
External abdominal oblique
Latin (NAV)
Musculus obliquus externus abdominis
Status
A valid term in the Nomina Anatomica Veterinaria
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