Physiology of the Cardiovascular System

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4 Terms

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What is the cardiac cycle

refers to the sequence of events that occur during one heartbeat, including two main phases: diastole, when the heart relaxes and fills with blood, and systole, when the heart contracts and pumps blood out. This cycle typically lasts about 0.8 seconds in a healthy heart beating at 70 to 75 beats per minute.

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Arterial blood pressure

Measured in mmHg

Systolic/Diastolic

Average BP is 120/80=mmHg

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what does the Sphygmomanometer measure

measures pressure

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Korotkoff sounds

sounds of friction as the blood begins to flow within the brachial artery