Word: humerus
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Dates: during 1960-1969
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...Cambridge, Mass., last week. Actually, it was a bit of serendipity. After laboratory analysis of the radioactive decay in the lava surrounding the bone, Harvard's Museum of Comparative Zoology determined that the bone must be 2,500,000 years old. Since it is a piece of humerus, or upper arm, conforming remarkably to the skeletal structure of modern man, the Kanapoi hominid apparently lived 750,000 years earlier than Homo habilis, previously thought to be man's oldest direct ancestor known to have walked erect. Alas, the Kanapoi hominid probably didn't live very long...
...chipped ice. The doctors dared lose no time in this effort to cut down the tissues' need for oxygen and thus delay the onset of rigor mortis in the muscles. Ev Knowles's shoulder joint was intact. The break in the humerus (the only bone in the upper arm) was between two and three inches below the joint. Says M.G.H. Spokesman Dr. Robert Shaw: "It was as though the arm had been laid on a bar and whacked with a sledge into multiple fragments." About an inch of the bone had been destroyed, mainly on the outer side...
Single Stitches. Lying on the operating table beside its owner, the arm was still attached only by suture threads. To fix it firmly, an orthopedic surgeon drove a stainless-steel rod into the broken upper end of the humerus, through its squishy marrow center, until the end of the rod projected into the shoulder. He fitted the broken bone ends together, pushing the rod down into the marrow of the undamaged lower bone. If new bone grows well enough to make a solid union, the rod may later be withdrawn; otherwise it will be left in place...
...hard pitching. In Little League elbow, the piece of bone that rests at the end of the elbow (the medial epicondylar epiphysis) is pulled out of position by tendons and muscles and is sometimes fractured. In Little League shoulder, the cartilage near the end of the upper arm bone (humerus) is torn loose. Both injuries require immobilization with a cast, splint, or sling. But all too often, cases are treated at home as "pulled muscles." Many of the injuries could be avoided if young pitchers were warmed up properly before going into a game. Says the University of Florida...