Broadest muscle of the back
Musculus latissimus dorsi
To draw the humerus upward and backward and flex the shoulder joint. If the limb is advanced and fixed, it draws the trunk forward.
About the broadest muscle of the back of the horse
Broadest muscle of the back is a muscle of the body (trunk), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Musculus latissimus dorsi. 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 lumbo-dorsal fascia—and by this means from the lumbar and thoracic spines as far forward as the highest point of the withers.
- Insertion
- The teres tubercle of the humerus, in common with the teres major.
- Action
- To draw the humerus upward and backward and flex the shoulder joint. If the limb is advanced and fixed, it draws the trunk forward.
- Nerve
- The thoracodorsal nerve.
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
- Broadest muscle of the back
- Latin (NAV)
- Musculus latissimus dorsi
- Status
- A valid term in the Nomina Anatomica Veterinaria
Questions about the broadest muscle of the back
- What is the Latin name of the broadest muscle of the back?
- In the Nomina Anatomica Veterinaria, the broadest muscle of the back is called Musculus latissimus dorsi.
- Where is the broadest muscle of the back of the horse?
- Broadest muscle of the back is a muscle of the body (trunk), one on each side of the body.
- Where does the broadest muscle of the back originate and insert?
- Origin: The lumbo-dorsal fascia—and by this means from the lumbar and thoracic spines as far forward as the highest point of the withers. Insertion: The teres tubercle of the humerus, in common with the teres major.
- What nerve supplies the broadest muscle of the back?
- The thoracodorsal nerve.
- What does the broadest muscle of the back do?
- To draw the humerus upward and backward and flex the shoulder joint. If the limb is advanced and fixed, it draws the trunk forward.
See the broadest muscle of the back 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.
