Circulatory System
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What are the functions of the heart
• heart pumps de- oxygenated blood back to the lungs where it gets rid of carbon dioxide • blood enriched with oxygenflows back to heart from lungs • from there, it is pumped to the rest of body
What is the average heart beat of a healthy person
70 beats per minute
Why do fit people have a lower heart rate
Their heart is stronger so it pumps less
What is hypertension
High blood pressure
What is your blood pressure determined by
The amount of blood that your heart pumps, as well as the amount of resistance in your arteries
What can unhealthy high blood pressure lead to
Heart attacks and strokes
What risk factors lead to high blood pressure
Severe stress smoking cigarettes being overweight little to no exercise Unhealthy diet. Too much alcohol Too much use of salt