Cleidobrachial muscle

Musculus cleidobrachialis

  • Muscle
  • Front leg
  • Paired: left and right
  • Dog

Brings the limb forward and extends the shoulder.

About the cleidobrachial muscle of the dog

Cleidobrachial muscle is a muscle of the front leg (thoracic limb), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Musculus cleidobrachialis. Cranial to the shoulder joint and biceps; NAV equates it with Pars clavicularis m. deltoidei. You can turn it above, see it in place in the front leg of the dog, 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 clavicular intersection, a fibrous line in front of the shoulder that stands for the clavicle.
Insertion
The humerus, on its front face low down near the elbow.
Action
Brings the limb forward and extends the shoulder.
Nerve
Axillary nerve.

Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.

What it works on

Cranial to the shoulder joint and biceps; NAV equates it with Pars clavicularis m. deltoidei.

Bones it takes hold of

Muscles and ligaments it works with

Terminology

English
Cleidobrachial muscle
Latin (NAV)
Musculus cleidobrachialis
Status
A valid term in the Nomina Anatomica Veterinaria

References

Where to read this structure in full, and where the named parts above were read.

  • NAV 2017Myologia: musculi colli, trunci et membri thoracici (extrinsic muscles of the thoracic limb)
  • Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the thoracic limb (extrinsic)
  • König & LiebichMuscles of the thoracic limb
  • Dyce, Sack & WensingThe forelimb of the carnivores
  • Miller 2020 (book pass)ch. 6 The Muscular System, PDF p. 502

The cleidobrachial muscle in other animals

The same structure in the other animals in the Library, to compare.

Questions about the cleidobrachial muscle

What is the Latin name of the cleidobrachial muscle?
In the Nomina Anatomica Veterinaria, the cleidobrachial muscle is called Musculus cleidobrachialis.
Where is the cleidobrachial muscle of the dog?
Cleidobrachial muscle is a muscle of the front leg (thoracic limb), one on each side of the body.
Which bones does the cleidobrachial muscle attach to?
Cleidobrachial muscle takes hold of Humerus and Clavicle.
Where does the cleidobrachial muscle originate and insert?
Origin: The clavicular intersection, a fibrous line in front of the shoulder that stands for the clavicle. Insertion: The humerus, on its front face low down near the elbow.
What nerve supplies the cleidobrachial muscle?
Axillary nerve.
What does the cleidobrachial muscle do?
Brings the limb forward and extends the shoulder.

See the cleidobrachial muscle inside the whole dog.

Vetomica opens on this structure with every layer of the dog 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.

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