Radial notch

Radial notch
Upper extremity of left ulna. Lateral aspect. (Radial notch visible at center top.)
Details
Identifiers
Latin	incisura radialis ulnae
TA	A02.4.06.005
FMA	23618
*Anatomical terms of bone* [edit on Wikidata]

The radial notch of the ulna (lesser sigmoid cavity) is a narrow, oblong, articular depression on the lateral side of the coronoid process; it receives the circumferential articular surface of the head of the radius.

It is concave from before backward, and its prominent extremities serve for the attachment of the annular ligament.

Additional images

Annular ligament of radius, from above.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Right ulna (anterior - proximal end) - BioWeb at University of Wisconsin System
elbow/elbowbones/bones3 at the Dartmouth Medical School's Department of Anatomy

Bones of the arm

Shoulder girdle, clavicle

Scapula

fossae (subscapular, supraspinatous, infraspinatous)
notches (suprascapular, great scapular)
glenoid cavity
tubercles (infraglenoid, supraglenoid)
spine of scapula
acromion
coracoid process
angles (superior, inferior, lateral)

Humerus

upper extremity: necks (anatomical, surgical)
tubercles (greater, lesser)
bicipital groove
body: radial sulcus
deltoid tuberosity
lower extremity: capitulum
trochlea
epicondyles (lateral, medial)
supracondylar ridges (lateral, medial)
fossae (radial, coronoid, olecranon)

Forearm

Radius	proximal (head, tuberosity) distal (ulnar notch, styloid process, Lister's tubercle)

Ulna	upper extremity (tuberosity, olecranon, coronoid process, radial notch, trochlear notch) body lower extremity (head, styloid process)

Hand

Carpal bones	scaphoid lunate triquetral pisiform trapezium trapezoid capitate hamate hamulus

Metacarpal bones	1st 2nd 3rd 4th 5th

Phalanges	proximal intermediate distal

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