Search results
Results from the WOW.Com Content Network
The ulna or ulnar bone (pl.: ulnae or ulnas) [3] is a long bone in the forearm stretching from the elbow to the wrist. It is on the same side of the forearm as the little finger, running parallel to the radius, the forearm's other long bone. Longer and thinner than the radius, the ulna is considered to be the smaller long bone of the lower arm.
The distal radioulnar articulation [1] (also known as the distal radioulnar joint, [2] or inferior radioulnar joint [1] [3]) is a synovial pivot joint between the two bones in the forearm; the radius and ulna. It is one of two joints between the radius and ulna, the other being the proximal radioulnar articulation.
In mammals and non-human primates, the pisiform is an enlarged and elongated bone that articulates with the distal ulna. [5] In some taxa, the pisiform even articulates with the hammate or radius. [5] In these non-human taxa, the pisiform develops from two ossification centers that are divided by a palmar epiphyseal plate. [5]
The styloid process of the ulna projects from the medial and back part of the ulna. It descends a little lower than the head. The head is separated from the styloid process by a depression for the attachment of the apex of the triangular articular disk, and behind, by a shallow groove for the tendon of the extensor carpi ulnaris muscle.
the adult skull is normally made up of 22 bones. Except for the mandible, all of the bones of the skull are joined together by sutures, semi-rigid articulations formed by bony ossification, the presence of Sharpey's fibres permitting a little flexibility: Date: 4 January 2007: Source: made it myself: Author: LadyofHats Mariana Ruiz Villarreal ...
In human anatomy, the wrist is variously defined as (1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; [1] [2] (2) the wrist joint or radiocarpal joint, the joint between the radius and the carpus [2] and; (3) the anatomical region surrounding the carpus including the distal parts of the bones of the forearm and the proximal parts of ...
lesson4bonesofantforearm at The Anatomy Lesson by Wesley Norman (Georgetown University), radiographsul at The Anatomy Lesson by Wesley Norman (Georgetown University) Right ulna (anterior - proximal end) [dead link ] - BioWeb at University of Wisconsin System; X-ray at uams.edu Archived 2007-02-19 at the Wayback Machine
The capitate is the largest carpal bone found within the hand. [2] The capitate is found within the distal row of carpal bones. The capitate lies directly adjacent to the metacarpal of the ring finger on its distal surface, has the hamate on its ulnar surface and trapezoid on its radial surface, and abuts the lunate and scaphoid proximally.