Hand and fingers



Each Hand on the twenty-seven bones. There are eight bones found in the wrist called as the "bones of the wrist." Palm include five bones called as "the metacarpal bones." The bones found in the remaining fingers. Fourteen bones and numbering. And called as "phalanges." The joints between the bones. Muscles that move the bones around the joints. One can catch things by induced muscle in the palm and arm. Every muscle is composed of two sections. Shrink flesh part of the muscle, bone Faihrk. Extends other part of the muscle, which is plugged in, into the Hand relates to the fingers. Muscles are connected to the arm bones of the arm when the flesh part of it. Tstdq muscle at the edges, turning to the tendons pass through the wrist down to the fingers. These tendons and bones related to the fingers. When shrink flesh part of the muscle, the tendon pulls in the direction of the arm like a rope. And the smooth movement of non-pain and flexes the fingers. There is a special tube covers some of the tendons, it contains a liquid makes the movement smooth and painless. Be plugged in and the tube envelope his crowns in place by a specialist cover named as the "sheath".






Hand and fingers







from منتديات سيدتي الجميلة
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