WELL 175 Lecture Notes - Lecture 5: Venae Cavae, Pulmonary Circulation, Gas Exchange
18 Nov 2016
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Document Summary
Is a major body system that circulates blood through the body; consists of the heart, blood vessels, and respiratory system. Through blood circulations, the cre system transports oxygen, nutrients, and other key substances to the organs and tissues that need them. It also picks up waste products to where they can be either reused or expelled. Average size is the size of a fist. The heart"s major function is to pump blood through two separate circulatory systems. Circulatory system that moves blood between the heart and the lungs; controlled by the right. Circulatory system that moves blood between the heart and the rest of the body; controlled by the left side of the heart. Atria: the two upper chambers of the heart in which blood collects before passing to the ventricles. Ventricles: the two lower chambers of the heart from which blood flows through arteries to the lungs and other parts of the body.
