Cardiovascular System Questions And Answers

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1. List the functions of the cardiovascular system. What are the different types of blood vessels? Which vessels carry blood towards the heart? Which carry blood away from the heart? Where does gas exchange occur?
The functions of the cardiovascular system are: pumping blood to body tissues and organs; maintaining homeostasis; and transport gases, waste, and hormones. The different types of blood vessels are: arteries, capillaries, and veins. The vessels that carry blood towards the heart are veins and the vessels that carry blood away from the heart are arteries. Gas exchange occurs in the capillaries.
2. Describe the layers of blood vessels. Describe the differences between arteries and veins.
The layers of blood vessels are: a hollow interior (lumen), contains an outer
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Blood flow through the heart by: Superior and inferior vena cava return oxygen poor blood to the right atrium of the heart -> right atrium -> right ventricle -> pulmonary artery -> lungs -> oxygen rich blood is transported to the left atrium through the pulmonary veins -> left atrium -> left ventricle -> aorta -> body. The pattern of blood flow through the cardiovascular system is through the lungs (the pulmonary circuit) and through the rest of the body to all of the cells (the systemic circuit) simultaneously. The pulmonary circuit transports oxygen-poor blood through the lungs, where the blood gives up carbon dioxide and picks up a fresh supply of oxygen form the air we inhale. The systemic circuit transport oxygen-rich blood from the heart to every part of the body. The arteries divide into arterioles, which divide again into the capillaries that serve the individual cells of the tissues. At the cells, the blood gives up oxygen and picks up a fresh supply of carbon dioxide. The systemic veins then transport this oxygen-poor blood back to the

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