Anatomy and physiology - designed for academies and families (1847) (14781514582)

Identifier: 61022090R.nlm.nih.gov
Title: Anatomy and physiology : designed for academies and families
Year: 1847 (1840s)
Authors: Cutter, Calvin, 1807-1873?
Subjects: Anatomy Physiological Processes
Publisher: Boston : Mussey
Contributing Library: U.S. National Library of Medicine
Digitizing Sponsor: Open Knowledge Commons, U.S. National Library of Medicine



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it isforced into the aorta, A. Through the branches of the aorta,h, k, and i, i, the purified blood is carried to every organ inthe system. These arteries terminate in capillaries, 1,1,1,1.Through these minute capillaries, the blood is conveyed tothe radicles of the veins. In the capillaries the blood losesits vermilion color, and becomes of a dark modena hue.From the capillaries the blood is returned to the right auricleof the heart, b, through the veins, a, a, a, a. Through what agcncy is the blood carried to and from the heart ? De-scribe the circulation of the venous blood in the heart and lungs. At whatpoint is the blood purified ? What is the relative position of the arteriesand veins ? 220 ANATOMY AND PHYSIOLOGY. Let the student make a diagram upon the black board, ofthe pulmonic arteries and veins, and the systemic arteries andveins, with the relative positions of the air cells and capillaryvessels; and from the diagram trace the pulmonic and sys-temic circulations. Fig. 1G4.
Text Appearing After Image:
Pig. 164. T, The trachea. S, A bronchial tube, x, x. Air vesicles, In which thebronchi terminate, a, a, a, a, Svstemlc veins, through which the impure blood is re-turned to the right auricle, b, The right auricle, c, The right ventricle, d, a, a,The right and leit pulmonary arteries, e, e, e. The pulmonary veins. /, The left au-ricle, o. The left ventricle. A, The aorta, h, h i, «, Branches of the aorta, throughwhich the blood Is carried to the svstem. 1, 1, 1, 1, Capillary vessels. In which theemail arteries terminate, and In which the veins commence. The blood is carried from the heart in the arteries ; 1st, byHow is the blood first impelled from the heart to the arteries ? PHYSIOLOGY OF THE ARTERIES, ETC. 221 the contraction of the muscular Avails of the heart. The en-ergy of the contraction of the heart varies in different indi-viduals. It is likewise modified by the health and tone of thesystem. It is difficult to estimate the muscular power of theheart; but, comparing it with o