What is the Latin name of the long head of the triceps?

In the Nomina Anatomica Veterinaria, the long head of the triceps is called Musculus triceps brachii caput longum.

Which bones does the long head of the triceps attach to?

Long head of the triceps takes hold of Scapula and Ulna.

Where does the long head of the triceps originate and insert?

Origin: Scapula, along most of its caudal edge below the neck. Insertion: Olecranon tuber of the ulna.

Long head of the triceps

Musculus triceps brachii caput longum

Muscle
Front leg
Paired: left and right
Dog

Extends the elbow and, crossing the shoulder, flexes that joint.

About the long head of the triceps of the dog

Long head of the triceps 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 triceps brachii caput longum. Largest head; only head crossing the shoulder. 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: Scapula, along most of its caudal edge below the neck.
Insertion: Olecranon tuber of the ulna.
Action: Extends the elbow and, crossing the shoulder, flexes that joint.
Nerve: Radial 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

Largest head; only head crossing the shoulder.

Bones it takes hold of

Muscles and ligaments it works with

Terminology

English: Long head of the triceps
Latin (NAV): Musculus triceps brachii caput longum
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 membri thoracici
Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the thoracic limb
König & LiebichMuscles of the thoracic limb
Dyce, Sack & WensingThe forelimb of the carnivores
Miller 2020 (book pass)ch. 6 The Muscular System, PDF p. 567

Questions about the long head of the triceps

What is the Latin name of the long head of the triceps?: In the Nomina Anatomica Veterinaria, the long head of the triceps is called Musculus triceps brachii caput longum.
Where is the long head of the triceps of the dog?: Long head of the triceps is a muscle of the front leg (thoracic limb), one on each side of the body.
Which bones does the long head of the triceps attach to?: Long head of the triceps takes hold of Scapula and Ulna.
Where does the long head of the triceps originate and insert?: Origin: Scapula, along most of its caudal edge below the neck. Insertion: Olecranon tuber of the ulna.
What nerve supplies the long head of the triceps?: Radial nerve.
What does the long head of the triceps do?: Extends the elbow and, crossing the shoulder, flexes that joint.

See the long head of the triceps 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.

Open it in Vetomica Practise naming it

Free for 7 days, no card. After that the skeletons stay free.