PRINCIPLE ARTERIES AND VEINS OF THE BODY
This diagram of the principle Arterie* and Veina of the body, shows you how every part of the body i* vitally connected with one of the myriads of blood channels, whether a large vein or a smali canillary. Notę how these blood atreams ure connected with the henrt ona lungs. The function of the heart is to kecp the blood circulating throughout the body, carrying oxygcn-abxorh\ng blood from scores of tiny sac« in the lungs to every part of the body. Thus you can aee how impor-tant it i» for you to breathe correctly ... to draw great qunntitiea |of cnergy-proaucing oxygen into your lungłi . . . to bc quickly ab-1 sorbed by the blood. and then carried to evcry muscle giving you new cncrgy and increaaed atrength.
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