Unit 7 Flashcards
1
Q
Define aerobic capacity
A
The ability to take in transport and use oxygen
2
Q
What is cardiac output and what is the equation?
A
The volume of blood pumped by the heart in 1 minute
CO= stroke volume x Heart rate
3
Q
How is adequate oxygen supply maintained?
A
Increasing cardiac output
Faster rate of breathing
Deeper breathing
4
Q
Define stoke volume
A
The volume of blood pumped out of the left ventricle each time the ventricle contracts (measured in cm^3)
5
Q
What is the venous return ?
A
The flow of blood back to the heart. The greater the muscle action, the higher the amount of blood that returns to the heart. This increases stroke volume and cardiac output
