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Circulatory system
Question | Answer |
---|---|
atrium | 2 upper chambers of heart that contract at same time during heartbeat |
artery | blodd vessels that carries blood away from the heart + has thick elastic walls of connective tissue and smooth muscle tissue |
capillary | microscopic blood vessels that connects arteries and veins; has wals one celled thick, through which nutrients and oxygen diffuse into blood cells and waste materials and carbon dioxide diffues out |
pulmonary circulation | flow of blood thru heart to the lungs and back to heart |
corinary circulation | flow of blood to + from tissues of heart |
vein | blood vessels that caries blood bk to heart + has 1way valves that kept blood moving toward heart |
ventricle | 2 lower chambers of the heart that contract at smae time during a heartbeat |
systematic circulation | largest part of circulatory system in which oxygen-ruch blood flows to all organs + blood tissues except heart and lungs + oxygen-poor blood is returned to heart |