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Updated: May 28, 2025
On the inside of the girdle is a smooth, basin-shaped support for the contents of the abdomen, but on the outside the bones are rough and irregular and provide many places for the attachment of muscles and ligaments. The Arm and Hand Groups.—A long bone, the humerus, connects the arm with the shoulder and gives form to the upper arm.
Diameter of femur in the middle...33 = 1.2"...30 = 1.1". A perfect right humerus, whose size shows that it belongs to the thigh-bones. mm. Length...312 = 12.3". Thickness in the middle...26 = 1.0". Diameter of head...49 = 1.9". "Also a perfect right radius of corresponding dimensions, and the upper-third of a right ulna corresponding to the humerus and radius.
The most serious and permanent injuries of this nerve are associated with fractures of the humerus, especially those from direct violence attended with comminution of the bone. The nerve may be crushed or torn by one of the fragments at the time of the injury, or at a later period may be compressed by callus. Clinical Features.
As already mentioned, its rounded head fits into the socket of the shoulder-blade, forming a ball-and-socket joint, which permits great freedom of motion. The shoulder joint resembles what mechanics call a universal joint, for there is no part of the body which cannot be touched by the hand. When the shoulder is dislocated the head of the humerus has been forced out of its socket. The Forearm.
In some of the lower Quadrumana, in the Lemuridae and Carnivora, as well as in many marsupials, there is a passage near the lower end of the humerus, called the supra-condyloid foramen, through which the great nerve of the fore limb and often the great artery pass.
In the leg and forearm, the unaffected bone maintains the length and contour of the limb; in the case of the femur and humerus, extension with weight and pulley along with some form of moulded gutter splint is employed with a similar object. Amputation of the limb is reserved for grave cases, in which life is endangered by toxæmia, which is attributed to the primary lesion.
"Well, look at your drawings. The egg-patches are on the dorsal surface of the scapula, the humerus, and the bones of the fore-arm. But here you have shown six of the bones of the hand: two metacarpals, the os magnum, and three phalanges; and they all have egg-patches on the palmar surface. Therefore the hand was lying palm upward." "But the hand may have been pronated."
Hamilton gives the record of a case of fracture of the humerus, from muscular action, taking place three several times in the same individual, each time in a different place. CASE THIRD. Dec. 29th, 1878, was called to see Mr. , male, married, aged about 40 years. Has led an out-door, active life. Has always been healthy. No venerial taint.
Here you lay hold of him, Bromley that last round with the cabman nearly put my humerus out." The huge, burly, pea-jacketed medical student for such I saw at once he was laid hold of me on the right tenderly enough, and walked me off between him and the policeman.
All sorts of tests of this kind have been suggested. Cranium, cranial sutures, frontal process, nasal bones, eye, chin, jaws, wisdom teeth, hair, humerus, pelvis, the heart-line across the hand, calf, tibia, heel, colour, and even smell all these external signs, as well as many more, have been thought, separately or together, to afford the crucial test of a man's pedigree.
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