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Dog · Bone · Thoracic limb

Ulnar carpal bone

Os carpi ulnare

The lateral bone of the proximal carpal row, articulating with the ulna above and the fourth carpal bone below.

System
Bone
Region
Thoracic limb
Sides
Paired: left and right
Named parts
4

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.

Action
The lateral bone of the proximal carpal row, articulating with the ulna above and the fourth carpal bone below.

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

Named parts

What to look for on the bone, and what each part is called in the Nomina Anatomica Veterinaria.

Ulnar carpal boneOs carpi ulnare
The lateral bone of the proximal row, shaped much like the intermedioradial carpal but smaller.Miller 2020, p. 325
Lateral process
The small projection on the outer side.Miller 2020, p. 325
Palmar process
The larger one behind, for the accessory carpal and the fifth metacarpal.Miller 2020, p. 325
Articular area for the ulnar styloid process
The hollow that sets the palmar process off from the body of the bone on its lateral side.Miller 2020, p. 325

What it meets

Proximal row, lateral; articulates with ulna.

Bones it articulates with

Joints it forms

  • Antebrachiocarpal joint

Muscles and ligaments that take hold of it

  • Lateral collateral ligament of carpus

Terminology

English
Ulnar carpal bone
Latin (NAV)
Os carpi ulnare
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.

  • Miller 2020Miller 2020, ch. 4 The Skeleton, Carpus, PDF p. 324-326
  • König & Liebich 2020skeleton of the thoracic limb, p. 171-184
  • Dyce 2017ch. 16 Forelimb of the Dog and Cat, p. 464 (clavicle p. 69)
  • NAV 2017Osteologia