Styloid process of radius
The radius forms the lateral bone of the forearm and is composed of a head, neck and body (or shaft). The inferolateral aspect of the distal end of the body of the radius presents with a blunt bony projection known as the styloid process of the radius.
Much like the rest of the bony landmarks of the radius, the styloid process is an important attachment site for muscles and ligaments of the forearm, wrist and hand. It provides an insertion site for the large brachioradialis muscle of the forearm and acts as an attachment point for the radial collateral ligament of the wrist joint and the radioscaphocapitate ligament of the carpus.
The styloid process of the radius forms the proximal border of the anatomical snuff box and is easily palpated at the lateral base of the body of the radius, proximal to the base of the thumb.
Terminology |
English: Styloid process of radius Latin: Processus styloideus radii |
Definition | Blunt bony projection at the inferolateral aspect of the distal end of the body of the radius |
Function | Attachment site for brachioradialis muscle, radial collateral ligament of wrist joint and radioscaphocapitate ligament |
Learn more about the bony features and landmarks of the radius with the study unit below:
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