Lateral head of the triceps muscle of the arm

Musculus triceps brachii caput laterale

Extends the elbow.

System
Muscle
Region
Thoracic limb
Sides
Paired: left and right
Lateral head of the triceps muscle of the arm (Musculus triceps brachii caput laterale) of the horse, left side: a three-quarter view of the muscle.

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 curved line on the lateral surface of the humerus, from its neck to the deltoid tuberosity.
Insertion
The lateral surface of the olecranon.
Action
Extends the elbow.
Nerve
The radial 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
Lateral head of the triceps muscle of the arm
Latin (NAV)
Musculus triceps brachii caput laterale
Status
A valid term in the Nomina Anatomica Veterinaria
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