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Moreover, the size of the humerus is not in fact equal in all individuals. [5] It also varies with nutritional status. [1] The formulae for the derived measures are based upon an assumption that the arm is cylindrical in shape, and are thus based upon the simple geometry of a cylinder. The arm is not in fact an ideal cylinder.
The humerus (/ ˈ h juː m ər ə s /; pl.: humeri) is a long bone in the arm that runs from the shoulder to the elbow.It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections.
There is an approximately 4-to-1 disproportion in size between the large head of the humerus and the shallow glenoid cavity. ... Although musculoskeletal ultrasound ...
If a joint effusion is depicted in the ultrasound, two-plane X-ray imagery is necessary to diagnose the fracture. The standard procedure is the elbow-SAFE algorithm. [ 18 ] The sensitivity of the method in comparison with X-ray imaging is 97.9 percent, the specificity is 95 percent, the positive predictive value is 0.95, and the negative ...
Bone growth in length is stimulated by the production of growth hormone (GH), a secretion of the anterior lobe of the pituitary gland. The long bone category includes the femora, tibiae, and fibulae of the legs; the humeri , radii , and ulnae of the arms; metacarpals and metatarsals of the hands and feet, the phalanges of the fingers and toes ...
It forms two bands [3]: 908 - an anterior one and a posterior one - that insert into the lesser and greater tubercles of the humerus, respectively. [ 4 ] The two bands of the CCL blend with the joint capsule; [ 3 ] : 908 the ligament is intimately united with the capsule by its posterior and inferior border, but its anterior and superior border ...
When the humerus is driven from the glenoid cavity, its relatively soft head impacts against the anterior edge of the glenoid. The result is a divot or flattening in the posterolateral aspect of the humeral head, usually opposite the coracoid process. The mechanism which leads to shoulder dislocation is usually traumatic but can vary ...
Struthers' ligament is a feature of human anatomy consisting of a band of connective tissue at the medial aspect of the distal humerus. It courses from the supracondylar process of the humerus (also known as avian spur) to the medial epicondyle of the humerus. [2] It is not a constant ligament, and can be acquired or congenital.