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Section 43. the Blood Returns From the Lungs to the Left Auricle (l.au.)

Text Book of Biology, Part 1: Vertebrata · H. G. Wells — chapter 42 of 285 · ~25 words · public domain

by the pulmonary veins, hidden in the Figure by the heart, passes thence to the thick-walled left ventricle (l.vn.), and on into the aorta (ao.).