Ulnar Notch of The Radius

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.

This article incorporates text from a public domain edition of Gray's Anatomy.

Bones of upper limbs (TA A02.4, GA 2.200–230)
Pectoral girdle, clavicle
  • conoid tubercle
  • trapezoid line
  • costal tuberosity
  • subclavian groove
Scapula
  • fossae (subscapular, supraspinatous, infraspinatous)
  • scapular notch
  • glenoid cavity
  • tubercles (infraglenoid, supraglenoid)
  • spine of scapula
  • acromion
  • coracoid process
  • borders (superior, lateral/axillary, medial/vertebral)
  • 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)
  • ulna: upper extremity (tuberosity, olecranon, coronoid process, radial notch, trochlear notch)
  • body
  • lower extremity (head, styloid process)
Hand
  • carpus: scaphoid
  • lunate
  • triquetral
  • pisiform
  • trapezium
  • trapezoid
  • capitate
  • hamate (hamulus)
  • metacarpus: 1st metacarpal
  • 2nd
  • 3rd
  • 4th
  • 5th
  • phalanges of the hand: proximal
  • intermediate
  • distal

M: BON/CAR

anat (c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug (M5)

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