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A 60-year-old formerly obese woman has Type II Diabetes & has…
A 60-year-old formerly obese woman has Type II Diabetes & has permanent damage to the bicuspid aortic valve due to a heart attack
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Pathway of blood
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- Pulmonary Semilunar Valve
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Roles
Papillary Muscles: Pull on chordae tendineae & help to open cusps when ventricles are relaxing and filling with blood.
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Circulatory Problems
In heart failure, the pressure of blood in the lungs builds up & pushes fluids into the air sacs
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The Heart
Lub Dub (S1 & S2) sound caused by the closing of the atrioventricular valves and semilunar valves respectively.
With each heartbeat, your blood pressure will rise to a max. level and then fall to a min. level.
As your heart squeezes and pushes your blood through your arteries, your blood pressure goes up. As your heart relaxes, your blood pressure goes down.
Heart & lungs work together to make sure the body has the oxygen rich blood it needs to function properly
Pulmonary Loop: Right side of the heart picks up the oxygen-poor blood from the body & moves it to the lungs for cleaning & re-oxygenating
Systemic Loop: Once blood is re-oxygenated, the left side of the heart moves the blood throughout the body, so that every part receives needed oxygen
Concepts
Heart rate is the speed of the heartbeat measured by the number of contractions (beats) of the heart per minute
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Peripheral resistance is resistance in the circulatory system that is used to create blood pressure and the flow of blood
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