Term
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Definition
| internal transport system of substances to and from cells |
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Term
| gases (O & CO2), nutrients, urea, hormones, and vitamins |
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Definition
| What does the Circulatory System transport? |
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Term
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Definition
| What's the main function of EVERY organ system? |
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Term
| blood, blood vessels, and heart |
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Definition
| What are the components of the circulatory system? |
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Term
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Definition
| fluid tissue composed of RBC, WBC, platelets, and plasma |
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Term
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Definition
| also called red blood cells (RBC); round, disk shaped cells in the blood that carry oxygen to body cells; contain hemoglobin |
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Term
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Definition
| How long to RBC stay active in the bloodstream? Where are they destroyed? |
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Term
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Definition
| iron containing protein that can be found in RBCs; loosely bind to oxygen from lungs, carries it to the body cells and drops it off, taking the CO2 with it to the lungs to be exhaled |
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Term
| arteries, veins, and capillaries |
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Definition
| The 3 main types of blood vessels are...? |
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Term
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Definition
| large, thick-walled, muscular, elastic blood vessels that carry blood away from the heart |
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Term
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Definition
| When arteries from the heart branch off into smaller arteries that in turn divide into even smaller arteries are called _______. |
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Term
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Definition
| they enter tissues where they branch out into capillaries |
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Term
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Definition
| microscopic blood vessels with walls that are only one cell thick; form a dense network that reaches every cell in the body; thin walls allow diffusion of nutrients and gases between blood cells and tissues |
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Term
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Definition
| As blood leaves the tissues, the capillaries join to form slightly larger vessels called _______. |
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Term
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Definition
| The venules merge to form _______, large blood vessels that carry blood from the tissues back toward the heart; blood is not under as much pressure here as in arteries. |
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Term
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Definition
| a part of the vein which prevents backflow of blood |
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Term
| to keep blood moving constantly throughout the body |
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Definition
| The main function of the heart is...? |
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Term
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Definition
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Term
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Definition
| a double-walled sac that contains the heart |
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Term
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Definition
| How many chambers do mammalian hearts have? |
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Term
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Definition
| two upper chambers of the heart; walls are thinner than that of the ventricles |
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Term
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Definition
| two lower chambers of the heart; perform more work than atria |
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Term
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Definition
| Left side of the heart pumps to _____. |
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Term
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Definition
| Right side of the heart pumps to _______. |
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Term
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Definition
| Pulmonary artery brings __________ blood to the heart. |
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Term
| The molecule is loosely bound to a hemoglobin protein, then takes the pulmonary veins into the left artium, left ventricle, out the aorta, into some arteries, through the body to oxygen lacking cells. Then its back up to the heart, through the inferior vena cavae, through the right atrium and right ventricle, through the pulmonary artery, back to the lungs, back in the alveoli, and exhaled. |
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Definition
| Explain the route the oxygen molecule takes through the circulatory system after being diffused into the blood stream. |
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Term
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Definition
| Veins carry ________ blood toward the heart. |
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Term
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Definition
| Arteries carry _________ blood away from the heart. |
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Term
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Definition
| receives deoxygenated blood from the body through the vena cavae |
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Term
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Definition
| carries deoxy. blood from the brain |
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Term
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Definition
| carries deoxy. blood from the body |
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Term
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Definition
| pumps deoxy. blood to lungs via the pulmonary artery |
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Term
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Definition
| takes blood to the lungs and oxy. blood gets returned to the heart via the pulmonary vein |
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Term
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Definition
| receives oxy. blood from the pulmonary vein and pumps to the left ventricles |
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Term
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Definition
| forcefully pumps oxy. blood to the head and body via the aorta |
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Term
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Definition
| pumps oxy blood to body from the left ventricle; largest vessel in the body |
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Term
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Definition
| delivers blood to all body cells and carries away waste |
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Term
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Definition
| eliminates CO2 and oxygenizes blood |
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Term
| pulmonary, mitral, aortic, and tricuspid |
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Definition
| Name the valves of the heart. |
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Term
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Definition
| prevent backflow of blood in the heart |
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Term
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Definition
| sets heartbeat; a bundle of nerves @ the top of the right atrium |
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Term
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Definition
| piece of brain that regualtes the rate of the pacemaker, speeding or slowing nerve impulses |
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