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Gr 7 Science Ch 3

Gr 7 Science Ch 3.1 & 3.2 (Cardiovascular System)

TermDefinition
head the top or front portion of the body that contains the brain, eyes, ears, and mouth
trunk the middle division of the body that contains most of the vital organs
appendages arm or leg of the body
system a group of organs that together perform some large function for an organism
organ large structure made of several types of tissues specifically arranged to perform a definite function or functions
cardiovascular system body system that includes the heart, blood, and blood vessels; also called circulatory system
plasma straw-colored liquid that makes up over 50% of blood
red blood cells cells that transport oxygen to other cells of the body on special proteins called hemoglobin
platelets any of the cell pieces in the blood that form clots and seal up cuts
heart organ that drives the blood through the body's blood vessels
arteries any of the large blood vessels that carry blood away from the heart
arterioles any of the smaller blood vessels that branch from arteries
capillaries any of the tiny blood vessels in which the exchange of oxygen, nutrients, and wastes between the body cells and blood takes place
venules any of the blood vessels that carry blood from capillary networks to veins
veins any of the large blood vessels that carry blood back to the heart
atrium either of the upper chambers of the heart
ventricle either of the lower chambers of the heart
pericardium tough, slippery membrane that encloses the heart
pulmonary circulation blood flow from the heart to the lungs and back
systemic circulation flow of blood between the heart and the rest of the body
coronary circulation blood flow to the heart tissues
soul and spirit parts of a human that scientists cannot explain using scientific laws
Created by: mbrennan262
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