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Humerus


humerus
upper arm bone
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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humerus
The bone of the vertebrate forelimb, or arm, nearest to the body, to which it is attached at the shoulder. It is attached distally to the radius and ulna at the elbow.
Lab 13 Animal Diversity III
Lab 15 Rat Muscular and Digestive Systems ...
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The humerus is joined to the pectoral girdle at a joint and is held in place by muscles and ligaments. A dislocated shoulder occurs when the end of the humerus slips out of the socket of the scapula, stretching ligaments and muscles.
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Hinge joints, such as the elbow (between the humerus and the ulna). These joints act like a door hinge, allowing flexion and extension in just one plane.
Pivot joints, such as the elbow (between the radius and the ulna).
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origin to a large area of bone; in this case, the humerus
At its other end, the insertion, it tapers into a glistening white tendon which, in this case, is attached to the ulna, one of the bones of the lower arm.
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