Iliocostalis of the loins

Musculus iliocostalis lumborum

Extends and laterally flexes the loin, and draws the ribs caudally.

System
Muscle
Region
Pelvis
Sides
Paired: left and right
Iliocostalis of the loins (Musculus iliocostalis lumborum) 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
Ilium and the thoracolumbar fascia.
Insertion
Last ribs and the transverse processes of the lumbar vertebrae.
Action
Extends and laterally flexes the loin, and draws the ribs caudally.
Nerve
Dorsal branches of the lumbar and thoracic 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
Iliocostalis of the loins
Latin (NAV)
Musculus iliocostalis lumborum
Status
A valid term in the Nomina Anatomica Veterinaria
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