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CARDIOVASCULAR SYSTEM |MIDTERM REVISION CARDIOVASCULAR SYSTEM |MIDTERM REVISION
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What are the 4 chambers of the heart? - ANSWER-right atrium, right ventricle, left atrium, left ventricle What blood vessel does the right ventricle pump blood through? - ANSWER-pulmonary trunk to pulmonary arteries Is blood in the right side of the heart oxygenated or deoxygenated? - ANSWER- deoxygenated What blood vessels bring oxygenated blood into the left atrium? - ANSWER-the pulmonary veins What is the largest artery in the body? - ANSWER-aorta Arteries are blood vessels that carry blood ________________. - ANSWER-AWAY from the heart Veins are blood vessels that carry blood ____________________. - ANSWER-BACK TO THE HEART. What are the only deoxygenated arteries in the adult body? - ANSWER-the pulmonary arteries. what are the only oxygenated veins in the body? - ANSWER-pulmonary veins Where does gas exchange occur to oxygenate blood? - ANSWER-pulmonary capillaries What are other names for the left AV valve? - ANSWER-bicuspid valve or mitral valve What is another name for the Right AV valve? - ANSWER-tricuspid valve What is the purpose of valves in the heart and in the veins? - ANSWER-prevent backflow of blood What is the purpose of the semilunar valves? - ANSWER-prevent backflow of blood into the ventricles
What is the purpose of the AV valves? - ANSWER-prevent backflow into atria when ventricles contract (the picture shows how blood can flow backward into the atria if this valve is damaged) What is systolic blood pressure? - ANSWER-Pressure in arteries/left ventricle when ventricles are at maximally contracted. Top number What is diastolic blood pressure? - ANSWER-Pressure in left ventricle/arteries when ventricle is relaxed. Bottom number What is the purpose of the pulmonary circulation? - ANSWER-gas exchange - oxygen diffuses into the blood and carbon dioxide diffuses out. What is the purpose of the systemic circulation? - ANSWER-to deliver oxygen, hormones, and nutrients to cells; to carry away wastes and hormones made by the cell. What are the parts of the heart's conduction system? - ANSWER-1. Sinoatrial node