. Human physiology. hed with a tri-partite valve, called tricuspid or trigloddn; andthe pulmonary artery has three others, the sigmoid or semilunar. Fromthe edge of the tricuspid valve, next the apex of the heart, small, round,tendinous cords^ called chordae tendineoe^ are sent oft, which are fixed, asrepresented in Fig. 93, to the extremities of a few strong columnar car-nece,—called musculi papillares. These tendinous cords are of such alength as to allow the valveto be laid against the sides ofthe ventricle, in the dilatedstate of that organ; and to ad-mit of its being pushed backby the blo
. Human physiology. hed with a tri-partite valve, called tricuspid or trigloddn; andthe pulmonary artery has three others, the sigmoid or semilunar. Fromthe edge of the tricuspid valve, next the apex of the heart, small, round,tendinous cords^ called chordae tendineoe^ are sent oft, which are fixed, asrepresented in Fig. 93, to the extremities of a few strong columnar car-nece,—called musculi papillares. These tendinous cords are of such alength as to allow the valveto be laid against the sides ofthe ventricle, in the dilatedstate of that organ; and to ad-mit of its being pushed backby the blood, until a nearlycomplete septum is formeddurino; the contraction of theventricle. The semilunar orsigmoid valves are three innumber, situate around theartery. When these fall to-gether, there must necessarily c. orifices of the coronary arteries. be a space left between them. To obviate the inconvenience that would result from the existence of such a free space, a small granular body is attached to the middle of. Semilunar Valves closed.
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Keywords: ., bookauthordungliso, bookcentury1800, bookdecade1850, bookyear1856
