HPsych-Chapter2:CvSy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | blood from the body flows into the right atrium, then the right ventricle, to be pumped to the lungs
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| show | Blood from the lungs goes into the left atrium, then the left ventricle, to be pumped to the body
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| show | ventricles contract and pump blood out of the heart, atrioventricular valves (tricuspid and mitral) close to stop backflow into the atria; begins the cycle
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| Diastole | show 🗑
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| Effects of increased heart rate | show 🗑
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| show | systolic/ diastolic
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| show | cardiac output, blood volume, peripheral resistance, elasticity, viscosity
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| cardiac output | show 🗑
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| show | amount of blood in the system; greater volume= higher pressure needed to move it
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| show | difficulty of passing through blood vessels; more resistance= more pressure; as you go down the line, blood vessels get smaller and peripheral resistance increases
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| show | ease of stretching the blood vessels; less elasticity= higher bp (usually systolic)
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| show | blood thickness; thicker blood= more pressure
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| individual factors/circumstances affecting blood pressure | show 🗑
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| show | higher temp --> skin vessels expand--> bp drops; lower temps have the opposite effect
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| activity | show 🗑
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| show | stress, anger, or anxiety activate the sympathetic nervous system and increase blood pressure
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| factors affecting hypertension (make it more likely) | show 🗑
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| blood composition | show 🗑
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| formed elements | show 🗑
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| show | contain hemoglobin, which carries oxygen; each cell lasts ~3 months
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| anemia | show 🗑
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| erythrocytosis | show 🗑
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| sickle-cell anemia | show 🗑
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| show | several types of white blood cells with protective functions like attacking bacteria
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| leukemia | show 🗑
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| Leukopenia | show 🗑
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| Leukocytosis | show 🗑
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| Platelets | show 🗑
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| plasma | show 🗑
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| show | accumulation of fatty plaque on artery walls
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| arteriosclerosis | show 🗑
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| show | heart attack caused by obstruction of the heart's blood supply
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| angina pectoralis | show 🗑
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| show | bulge in weakened artery wall section which can rupture; frequently in the aorta
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| stroke | show 🗑
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Created by:
Jean-O
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