Landmark · Skeletal system
Posterior border of ulna
Margo posterior ulnae
- System
- Skeletal system
- Regions
- Upper limb
- Side
- Left and right
- Landmark on
- Ulna
DescriptionUnreviewed
The dorsal border (margo dorsalis; posterior border) begins above at the apex of the triangular subcutaneous surface at the back part of the olecranon, and ends below at the back of the styloid process; it is well-marked in the upper three-fourths, and gives attachment to an aponeurosis which affords a common origin to the flexor carpi ulnaris, the extensor carpi ulnaris, and the flexor digitorum profundus; its lower fourth is smooth and rounded.
This border separates the medial from the dorsal surface.
Source: Z-Anatomy · Text licence: CC BY-SA 4.0 · This text comes from the source data and has not been reviewed by a person yet.
Names
- Latin
- Margo posterior ulnae
- English
- Posterior border of ulna
- French
- Bord postérieur de l'ulna
- Spanish
- Margen posterior de la ulna
- Portuguese
- Borda posterior da ulna