Radius

Os radii

The radius is shorter than the ulna but widens distally. The radial head articulates with the capitulum of the humerus and the radial notch of the ulna. The radial tuberosity provides attachment for the biceps brachii tendon. The styloid process is at the distal end.

Type Bone
Body System Skeletal
Body Region Forearm
Latin Name Os radii
FMA ID 23463

Function

The lateral bone of the forearm that rotates around the ulna during pronation and supination. Articulates with the carpal bones at the wrist, bearing most of the load transmitted to the hand.

Clinical Significance

Distal radius fractures (Colles' fracture) are the most common fractures of the upper extremity. Radial head fractures occur from falls on outstretched hands. The radial artery at the wrist is used for pulse measurement.

Frequently Asked Questions

What is the Radius?
The radius is shorter than the ulna but widens distally. The radial head articulates with the capitulum of the humerus and the radial notch of the ulna. The radial tuberosity provides attachment for the biceps brachii tendon. The styloid process is at the distal end.
What is the function of the Radius?
The lateral bone of the forearm that rotates around the ulna during pronation and supination. Articulates with the carpal bones at the wrist, bearing most of the load transmitted to the hand.
What body system is the Radius part of?
The Radius is part of the Skeletal.
What conditions affect the Radius?
Distal radius fractures (Colles' fracture) are the most common fractures of the upper extremity. Radial head fractures occur from falls on outstretched hands. The radial artery at the wrist is used for pulse measurement.
Where is the Radius located?
The Radius is located in the Forearm region of the body.

Related Structures

articular surface articular system joint system articulation joint Atlas (C1) Atlas attachment site axial skeleton plus cranial skeleton skeleton axiale Axis (C2) Axis bone collagen fibril

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