Transverse muscle of the thorax
Musculus transversus thoracis
Draws the costal cartilages toward the sternum, narrowing the chest in expiration.
About the transverse muscle of the thorax of the horse
Transverse muscle of the thorax is a muscle of the body (trunk), on the left side. Its name in the Nomina Anatomica Veterinaria is Musculus transversus thoracis. You can turn it above, see it in place in the body of the horse, 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
- The dorsal surface of the sternum.
- Insertion
- The costal cartilages, on their inner aspect.
- Action
- Draws the costal cartilages toward the sternum, narrowing the chest in expiration.
- Nerve
- The intercostal nerves.
Written for Vetomica in its own words from the standard reference anatomy of the horse; the books it was checked against are listed below.
Terminology
- English
- Transverse muscle of the thorax
- Latin (NAV)
- Musculus transversus thoracis
- Status
- A valid term in the Nomina Anatomica Veterinaria
Questions about the transverse muscle of the thorax
- What is the Latin name of the transverse muscle of the thorax?
- In the Nomina Anatomica Veterinaria, the transverse muscle of the thorax is called Musculus transversus thoracis.
- Where is the transverse muscle of the thorax of the horse?
- Transverse muscle of the thorax is a muscle of the body (trunk), on the left side.
- Where does the transverse muscle of the thorax originate and insert?
- Origin: The dorsal surface of the sternum. Insertion: The costal cartilages, on their inner aspect.
- What nerve supplies the transverse muscle of the thorax?
- The intercostal nerves.
- What does the transverse muscle of the thorax do?
- Draws the costal cartilages toward the sternum, narrowing the chest in expiration.
See the transverse muscle of the thorax inside the whole horse.
Vetomica opens on this structure with every layer of the horse 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.
