Common digital extensor muscle

Musculus extensor digitorum communis

Extends the digit and the carpus.

System
Muscle
Region
Thoracic limb
Sides
Paired: left and right
Common digital extensor muscle (Musculus extensor digitorum communis) 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 humerus at its lateral epicondyle, the elbow's lateral collateral ligament, and the outer radius and ulna.
Insertion
The coffin bone at its extensor process, with branches to the proximal and middle phalanges.
Action
Extends the digit and the carpus.
Nerve
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
Common digital extensor muscle
Latin (NAV)
Musculus extensor digitorum communis
Status
A valid term in the Nomina Anatomica Veterinaria
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