Ulnar notch of the radius

Ulnar notch of the radius
Bones of left forearm. Anterior aspect. (Ulnar notch visible but not labeled.)
Details
Latin	incisura ulnaris radii
Identifiers
Gray's	p.220
Dorlands /Elsevier	12447593
TA	A02.4.05.019
FMA	75082
Anatomical terminology

The articular surface for the ulna is called the ulnar notch (sigmoid cavity) of the radius; it is in the distal radius, and is narrow, concave, smooth, and articulates with the head of the ulna forming the distal radioulnar joint.

References

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

Bones of the human arm

Pectoral 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)
intertubercular sulcus
body: radial sulcus
deltoid tuberosity
lower extremity: capitulum
trochlea
epicondyles (lateral, medial)
supracondylar ridges (lateral, medial)
fossae (radial, coronoid, olecranon)

Forearm

Radius	upper extremity (head, tuberosity) body lower extremity (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

Index of bones and cartilage

Description	Anatomy bones skull face neurocranium compound structures foramina upper extremity torso pelvis lower extremity Physiology Development Cells

Disease	Congenital Neoplasms and cancer Trauma fracture Other Symptoms and signs eponymous

Treatment	Procedures Drugs Surgery approaches