Rectus abdominis
Musculus rectus abdominis
Flexes the trunk, supports the abdominal viscera and assists in expiration and parturition.
About the rectus abdominis of the pig
Rectus abdominis is a muscle of the hips and pelvis (pelvis), a single structure on the midline. Its name in the Nomina Anatomica Veterinaria is Musculus rectus abdominis. You can turn it above, see it in place in the hips and pelvis of the pig, and open it inside the whole animal in Vetomica.
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
- Ventral surfaces of the costal cartilages and the sternum.
- Insertion
- Pubic brim by the prepubic tendon.
- Action
- Flexes the trunk, supports the abdominal viscera and assists in expiration and parturition.
- 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
- Rectus abdominis
- Latin (NAV)
- Musculus rectus abdominis
- Status
- A valid term in the Nomina Anatomica Veterinaria
Questions about the rectus abdominis
- What is the Latin name of the rectus abdominis?
- In the Nomina Anatomica Veterinaria, the rectus abdominis is called Musculus rectus abdominis.
- Where is the rectus abdominis of the pig?
- Rectus abdominis is a muscle of the hips and pelvis (pelvis), a single structure on the midline.
- Where does the rectus abdominis originate and insert?
- Origin: Ventral surfaces of the costal cartilages and the sternum. Insertion: Pubic brim by the prepubic tendon.
- What nerve supplies the rectus abdominis?
- Ventral branches of the caudal thoracic and the lumbar nerves.
- What does the rectus abdominis do?
- Flexes the trunk, supports the abdominal viscera and assists in expiration and parturition.
See the rectus abdominis inside the whole pig.
Vetomica opens on this structure with every layer of the pig around it: peel back the skin and the muscles, cut a section through it, X-ray it, and practise naming it until you stop getting it wrong.
Free for 7 days, no card. After that the skeletons stay free.
