Skeletal system
Ulna
- System
- Skeletal system
- Regions
- Upper limb
- Side
- Left and right
- Part of
- Bones of free part of upper limb
DescriptionUnreviewed
The ulna (pl. ulnae or ulnas) is a long bone found in the forearm that stretches from the elbow to the smallest finger, and when in anatomical position, is found on the medial side of the forearm.
It runs parallel to the radius, the other long bone in the forearm.
The ulna is usually slightly longer than the radius, but the radius is thicker.
Therefore, the radius is considered to be the larger of the two.
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Source: Wikipedia · Text licence: CC BY-SA 3.0 · This text comes from the source data and has not been reviewed by a person yet.
Muscle attachments
Muscles that arise here
- Extensor indicis
- Extensor pollicis longus
- Flexor pollicis longus
- Pronator quadratus
- Supinator
- Ulnar head of flexor carpi ulnaris
Muscles that insert here
Landmarks
- Anterior border of ulna
- Articular circumference of head of ulna
- Body of ulna
- Coronoid process of ulna
- Head of ulna
- Interosseous border of ulna
- Medial surface of ulna
- Olecranon
- Posterior border of ulna
- Posterior surface of ulna
- Radial notch
- Sublime tubercle
- Supinator crest
- Trochlear notch
- Tuberosity of ulna
- Ulnar styloid process
Names
- Latin
- Ulna
- English
- Ulna
- French
- Ulna
- Spanish
- Ulna
- Portuguese
- Ulna
In the same group
- Bones of hand
- Capitate bone
- Distal phalanx of fifth finger of hand
- Distal phalanx of first finger of hand
- Distal phalanx of fourth finger of hand
- Distal phalanx of second finger of hand
- Distal phalanx of third finger of hand
- Fifth metacarpal bone
- First metacarpal bone
- Fourth metacarpal bone
- Hamate bone
- Humerus
- Lunate bone
- Middle phalanx of fifth finger of hand
- Middle phalanx of fourth finger of hand
- Middle phalanx of second finger of hand
- Middle phalanx of third finger of hand
- Pisiform bone
- Proximal phalanx of fifth finger of hand
- Proximal phalanx of first finger of hand
- Proximal phalanx of fourth finger of hand
- Proximal phalanx of second finger of hand
- Proximal phalanx of third finger of hand
- Radius
- Scaphoid bone
- Second metacarpal bone
- Third metacarpal bone
- Trapezium bone
- Trapezoid bone
- Triquetrum bone