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A few of these fibres stretch across the olecranon fossa without attaching to it and form a transverse band with a free upper border. On the ulnar side, the capsule reaches down to the posterior part of the annular ligament. The posterior capsule is attached to the triceps tendon which prevents the capsule from being pinched during extension. [8]
The flexor carpi ulnaris has two heads; a humeral head and ulnar head. The humeral head originates from the medial epicondyle of the humerus via the common flexor tendon. The ulnar head originates from the medial margin of the olecranon of the ulna and the upper two-thirds of the dorsal border of the ulna by an aponeurosis.
The olecranon is situated at the proximal end of the ulna, one of the two bones in the forearm. [1] When the hand faces forward the olecranon faces towards the back (posteriorly). It is bent forward at the summit so as to present a prominent lip which is received into the olecranon fossa of the humerus during extension of the forearm. [2] [3]
Close to the elbow, the ulna has a bony process, the olecranon process, a hook-like structure that fits into the olecranon fossa of the humerus. This prevents hyperextension and forms a hinge joint with the trochlea of the humerus. There is also a radial notch for the head of the radius, and the ulnar tuberosity to which muscles attach.
Holes to accommodate a replacement graft tendon are drilled in the ulna and humerus bones of the elbow. [10] A harvested tendon, such as the palmaris tendon [ 11 ] from the forearm of the same or opposite elbow, the patellar tendon , hamstring, toe extensor or a donor's tendon ( allograft ), is then woven in a figure-eight pattern through the ...
Standing on one leg seems like a simple enough task. But — as anyone who has wobbled their way through it or crashed out in a yoga class while attempting a tree pose can tell you — it can be ...
According to NFL Media's Ian Rapoport, Dean tore his patellar tendon on Sunday during the Eagles' 22-10 wild-card win over the Green Bay Packers. Patellar tendon tears are tough injuries, and his ...
However, their proximity to the pressure epiphysis region means that the supporting ligaments and tendons attach to these areas of the bone. Traction epiphyses ossify later than pressure epiphyses. Examples of traction epiphyses are tubercles of the humerus (greater tubercle and lesser tubercle), and trochanters of the femur (greater and lesser).