"Sigmoid cavity" redirects here. For Greater sigmoid cavity, see Trochlear notch.
Ulnar notch of the radius
Bones of left forearm. Anterior aspect. (Ulnar notch visible but not labeled.)
Details
Identifiers
Latin
incisura ulnaris radii
TA98
A02.4.05.019
TA2
1228
FMA
75082 23530, 75082
Anatomical terminology
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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.
and 29 Related for: Ulnar notch of the radius information
the trochlea ofthe humerus. There is also a radial notch for the head oftheradius, and theulnar tuberosity to which muscles attach. Close to the wrist...
articulates with the capitulum ofthe humerus and the radial notchofthe ulna at the elbow. The articulation between theradius and the ulna at the elbow is...
margin oftheulnarnotchoftheradius to the front ofthe head ofthe ulna. It is sometimes abbreviated PRUL. This article incorporates text in the public...
radius. The joint features a triangular articular disc that is attached to the inferior margin oftheulnarnotch by its base, and to a fossa at the base...
the wrist and carpus are thus seen to be five in number:[citation needed] The first passes from the lower end oftheulnar to theulnarnotchofthe radius...
to the base oftheulnar styloid and by thinner tissue to the edge oftheradius just proximal to the radiocarpal articular surface. The radioulnar ligaments...
annular ligament oftheradius and its margins are attached near the radial notchofthe ulna. There are three main flexor muscles at the elbow: Brachialis...
the anterior margins of radial notch on the ulna, encircles the head ofradius and holds it against the radial notchof ulna. the accessory lateral collateral...
forearm, Medial root of median nerve, Ulnar nerve. Union of 4 Medials - Ulnar nerve, Medial cutaneous nerve of arm, Medial cutaneous nerve of forearm, Medial...
the ulna and radius, the muscles were from the olecranon process, trochlear notch, anconeal process, coronoid processes (medial and lateral), body of...
has the same origin, but inserts proximal to theulnarnotch. It is the only muscle that attaches only to the ulna at one end and theradius at the other...
hinge type of synovial joint. The annular ligament binds the head oftheradius to the radial notchofthe ulna, preventing any separation ofthe two bones...
to the inferior border ofthe radial notch on the ulna and to the neck oftheradius. Its borders are strengthened by fibers from the upper border of the...
ulna ulnar artery ulnar nerve umbilical folds umbilicus umbo uncal cortex uncal herniation Uncinate process of ethmoid bone Uncinate process of pancreas...
than the rest ofthe bone. The semilunar notch, where the ulna articulated with theulnar condyle ofthe humerus, was large and semicircular. The anconeal...
and radius. A triangular, raised trochlea continues on the dorsal surface which suggests greater ulnar extension compared to related dicynodonts. The radius...
as the parietal. In top view the rear edge ofthe skull roof is notched. The parietal eye (or at least the foramen parietale) is located between the parietals...
present at the underside ofthe distal portion ofthe bone. The radial condyle (capitulum) at the front is sometimes smaller than theulnar condyle (trochlea)...
(1999). Ulnar dimensions and fossoriality in armadillos. Acta Theriologica, 44. Carter, T. S., & Encarnaçao, C. D. (1983). Characteristics and use of burrows...
than the ulna but also flattened from top to bottom. The ulna was much more massive than theradius and had a well-developed ulnar process. The ulna was...