Subclavius muscle

Musculus subclavius

  • Muscle
  • Chest
  • Paired: left and right
  • Horse

Draws the limb back and steadies the shoulder against the trunk.

About the subclavius muscle of the horse

Subclavius muscle is a muscle of the chest (thorax), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Musculus subclavius. You can turn it above, see it in place in the chest 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 first costal cartilages and the cranial sternum.
Insertion
The fascia over the supraspinatus, near the scapula's front edge.
Action
Draws the limb back and steadies the shoulder against the trunk.
Nerve
Cranial pectoral 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
Subclavius muscle
Latin (NAV)
Musculus subclavius
Status
A valid term in the Nomina Anatomica Veterinaria

Questions about the subclavius muscle

What is the Latin name of the subclavius muscle?
In the Nomina Anatomica Veterinaria, the subclavius muscle is called Musculus subclavius.
Where is the subclavius muscle of the horse?
Subclavius muscle is a muscle of the chest (thorax), one on each side of the body.
Where does the subclavius muscle originate and insert?
Origin: The first costal cartilages and the cranial sternum. Insertion: The fascia over the supraspinatus, near the scapula's front edge.
What nerve supplies the subclavius muscle?
Cranial pectoral nerves.
What does the subclavius muscle do?
Draws the limb back and steadies the shoulder against the trunk.

See the subclavius muscle 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.

Join the community