Internal abdominal oblique
Musculus obliquus internus abdominis
Compresses the abdomen and flexes the trunk.
- System
- Muscle
- Region
- Pelvis
- Sides
- Paired: left and right
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
- Tuber coxae and the thoracolumbar fascia.
- Insertion
- Last rib, the costal arch and the linea alba by an 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
- Internal abdominal oblique
- Latin (NAV)
- Musculus obliquus internus abdominis
- Status
- A valid term in the Nomina Anatomica Veterinaria