Radial extensor muscle of the carpus

About the radial extensor muscle of the carpus of the dog

Radial extensor muscle of the carpus 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 extensor carpi radialis. Most cranial forearm muscle; medial to common digital extensor. 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

Lateral supracondylar crest of the humerus.

Insertion

Two tendons to the dorsal tuberosities at the proximal ends of metacarpals II and III.

Action

Extends the carpus; also assists elbow flexion.

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

Most cranial forearm muscle; medial to common digital extensor.

Bones it takes hold of

• Humerus
• Radius
• Metacarpal bones

Muscles and ligaments it works with

• Common digital extensor
• Brachioradialis
• Supinator
• Long abductor of digit I
• Brachial muscle
• Round pronator muscle
• Extensor retinaculum of carpus

Terminology

English

Radial extensor muscle of the carpus

Latin (NAV)

Musculus extensor carpi radialis

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

The radial extensor muscle of the carpus in other animals

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

• Radial extensor muscle of the carpus of the horse

Questions about the radial extensor muscle of the carpus

What is the Latin name of the radial extensor muscle of the carpus?

In the Nomina Anatomica Veterinaria, the radial extensor muscle of the carpus is called Musculus extensor carpi radialis.

Where is the radial extensor muscle of the carpus of the dog?

Radial extensor muscle of the carpus is a muscle of the front leg (thoracic limb), one on each side of the body.

Which bones does the radial extensor muscle of the carpus attach to?

Radial extensor muscle of the carpus takes hold of Humerus, Radius and Metacarpal bones.

Where does the radial extensor muscle of the carpus originate and insert?

Origin: Lateral supracondylar crest of the humerus. Insertion: Two tendons to the dorsal tuberosities at the proximal ends of metacarpals II and III.

What nerve supplies the radial extensor muscle of the carpus?

Radial nerve.

What does the radial extensor muscle of the carpus do?

Extends the carpus; also assists elbow flexion.