Skeletal system
Radius
- System
- Skeletal system
- Regions
- Upper limb
- Side
- Left and right
- Part of
- Bones of free part of upper limb
DescriptionUnreviewed
The radius or radial bone is one of the two large bones of the forearm, the other being the ulna.
It extends from the lateral side of the elbow to the thumb side of the wrist and runs parallel to the ulna.
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.
It is a long bone, prism-shaped and slightly curved longitudinally.
The radius is part of two joints: the elbow and the wrist.
At the elbow, it joins with the capitulum of the humerus, and in a separate region, with the ulna at the radial notch. At the wrist, the radius forms a joint with the ulna bone.
The corresponding bone in the lower leg is the fibula.
Continue reading on Wikipedia →
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
Muscles that insert here
Landmarks
- Anterior border of radius
- Anterior surface of radius
- Articular circumference of head of radius
- Articular facet of head of radius
- Body of radius
- Carpal articular surface
- Dorsal radial tubercle
- Grooves for extensor tendons
- Head of radius
- Interosseous border of radius
- Lateral surface of radius
- Neck of radius
- Posterior border of radius
- Posterior surface of radius
- Pronator tuberosity
- Radial styloid process
- Radial tuberosity
- Suprastyloid crest
- Ulnar notch
Names
- Latin
- Radius
- English
- Radius
- French
- Radius
- Spanish
- Radio
- Portuguese
- Rádio
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
- Scaphoid bone
- Second metacarpal bone
- Third metacarpal bone
- Trapezium bone
- Trapezoid bone
- Triquetrum bone
- Ulna