Cardiac Output Flashcards
1
Q
What is cardiac output
A
A measure of how hard the heart is working
2
Q
What is stroke volume
A
The volume of blood being pumped out of the left ventricle after a beat
3
Q
What is heart rate
A
Number of heart beats per minute
4
Q
How do you calculate cardiac output
A
Cardiac output= heart rate x stroke volume
5
Q
What is cardiac output controlled by
A
The cardiac control centre in the medulla oblongata
6
Q
How does increasing heart rate or stroke volume affect blood flow
A
It enables oxygen to be delivered to the body tissues quicker and waste products are carried away more quickly
