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URL:https://www.learndesk.us/class/4615273002827776/lesson/cbe5586c124bc23a1df8eb219d64c03c?ref=outlook-calendar
SUMMARY:Cardiovascular System Part 1.1
DTSTART;TZID=America/Los_Angeles:20260517T190000
DTEND;TZID=America/Los_Angeles:20260517T200000
LOCATION:https://www.learndesk.us/class/4615273002827776/lesson/cbe5586c124bc23a1df8eb219d64c03c?ref=outlook-calendar
DESCRIPTION: Pulse and blood pressure

Blood forced into the aorta during systole sets up a pressure wave that travels along the arteries and expands the artery wall. This expansion can be palpated by pressing the artery against tissue. The number of waves is known as the pulse, which is a direct reflection of the heart rate. The pulse rate, measured when a person is at rest, may be regular or irreg-ular, strong or weak. An irregular pulse occurs commonly with atrial fibrillation and premature contractions. A strong pulse occurs with hyperthyroidism; a weak one with shock and myocardial infarction. A resting heart rate greater than 100 beats per minute is known as tachycardia; a heart rate less than 50 or 60 beats per minute is known as Brady cardi. The amount of pressure exerted by the blood on the walls of the blood vessels is called blood pressure. The higher pres-sure, called systolic pressure, occurs when the ventricles con-tract. The lower pressure, called diastolic pressure, occurs when...

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