File:Human physiology (1907) (14581787407).jpg

Identifier: cu31924031263597 (find matches)
Title: Human physiology
Year: 1907 (1900s)
Authors: Furneaux, William S
Subjects: Human physiology
Publisher: London New York : Longmans, Green
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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126 ELEMENTARY PHYSIOLOGY a nipple). To these papilla are attached very fine tendinous threads (chordatendftTeae), which are again connected at their other and upper ends with thinmembranous flaps or cusps. The cusps are three in number, and he looselyagainst the walls of the ventricle, but it will be readily understood that a
Text Appearing After Image:
Fig. 118. -The Human Heart. The Left Auricle and Ventricle opened,and part of the Wall removed to show the Interior. :, pulmonary veins ; i, the left auricle; 2, a narro\v portion of the wall of the auricle andventricle preserved; 3, 3, 3, wall of the left ventricle; 4, a small part of the wall of theventricle preserved with a papillary muscle attached to it; 5, papillary muscles ; 6 and 6,the segments of the mitral valve; 7, the interior of the aorta, just above its semilunarvalves; 7, the arch of the aorta ; 8, the root of the pulmonary artery with its semilunarvalves ; 8, a separated portion of the pulmonary artery, remaining attached to the aortaby a cord, 9 ; 10, branches of the aorta. pressure of blood in the ventricle would act on the under surfaces of thesecusps and cause them to rise. Under these circumstances the tendinous cordsare stretched, and the edges of the cusps meet so as to stop the communica- THE HEART AND ITS DISSECTION I2? tion between the ventricle and the auric

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