Title: A text-book of animal physiology (microform) : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology
Identifier: cihm_40543 (find matches)
Year: 1889 (1880s)
Authors: Mills, Wesley, 1847-1915
Subjects: Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire
Publisher: New York : D. Appleton; London : Caxton House
Contributing Library: www.flickr.com/search/?tags=bookcontributorCanadiana_org
Digitizing Sponsor: University of Alberta Libraries

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THB CIBOULATION OF THB BLOOD. 388 McMoiMd are* of the â â ijV.i nels or cones with the smaller end toward the heart and the widest portions representing the capillaries. Thb Action or ths Mammalian Hbast. Verjr briefly what takes place may be thus stated: The right auricle contracting squeeses the blood through the au- riculo-ventricular opening into the right ventricle, never quite emptying itself probably; immediately after the right ventricle contracts, by which its valves are brou^t into sudden tension and apposition, thus preventing reflux into the auricle; while the blood within it takes the path of least resistance, and the only one open to it ' ito the pulmonary artery, and by its branches is conveyed to the capillaries of the lungs, from which it is returned freed from much of its carbonic anhy- dride and replenished with oxygen, to the-left auricle, whence it proceeds in a similar manner into the great arterial main, the aorta, for general distribution throughout the smaller arteries and the capillaries to the most remote as w6ll as the nearest parts, from which it is gathered up by the veins and returned laden with many impurities, and robbed of a large proportion of its useful matters, to the right side of the heart. It will be remembered that corresponding subdivisions of each side of the heart act simultaneously, and that any decided i^sms^^ims^si 'm^^^iummmmmKsmmmm

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