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MEASUREMENTS OF CIRCULATORY SYSTEM

MEASUREMENTS OF CIRCULATORY SYSTEM. Mrs. Luff 7 th Grade Life Science. HEARTBEAT. “ LUB-DUB " sound made by the closing of the valves of the heart . LUB - tricuspid/bicuspid DUB – two semilunar. ONE BEAT = ONE LUB-DUB. HEARTBEAT. Increase Rate. Decreased Rate. Activity Caffeine

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MEASUREMENTS OF CIRCULATORY SYSTEM

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  1. MEASUREMENTS OF CIRCULATORY SYSTEM Mrs. Luff 7th Grade Life Science

  2. HEARTBEAT “LUB-DUB" sound made by the closing of the valves of the heart. LUB- tricuspid/bicuspid DUB – two semilunar ONE BEAT = ONE LUB-DUB

  3. HEARTBEAT Increase Rate Decreased Rate Activity Caffeine Smaller body size (bird) Less physically fit Less activity (resting) Larger body size (horse) More physically fit

  4. PULSE • caused by the regular stretching and relaxing of the arteries when the blood spurts through them. PULSE RATE = HEARTBEAT RATE

  5. Are felt wherever the arteries are close to the skin. • Wrist • Temples • Armpits • Ankles • Inside thigh • neck Pulse Points

  6. BLOOD PRESSURE • As the heart beats, the blood surges against the artery walls. A measure of this force • is called blood pressure. • Blood pressure is not a constant pressure. The pressure is great when the ventricles • are pushes on the blood; thepressure is less when the ventricles are relaxed. • 3. NORMAL BLOOD PRESSURE = 115/80 • 4. HYPERTENSION - high blood pressure

  7. sphygmomanometer

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