Circulatory System Flashcards
1
Q
What are the functions of the heart
A
- 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
2
Q
What is the average heart beat of a healthy person
A
70 beats per minute
3
Q
Why do fit people have a lower heart rate
A
Their heart is stronger so it pumps less
4
Q
What is hypertension
A
High blood pressure
5
Q
What is your blood pressure determined by
A
The amount of blood that your heart pumps, as well as the amount of resistance in your arteries
6
Q
What can unhealthy high blood pressure lead to
A
Heart attacks and strokes
7
Q
What risk factors lead to high blood pressure
A
Severe stress
smoking cigarettes
being overweight
little to no exercise
Unhealthy diet.
Too much alcohol
Too much use of salt
