Exercise Increases Heart Rate Flashcards
1
Q
What happens when you exercise?
A
Your muscles need more energy, so you respire more
2
Q
What do you need to do in terms of O2 and CO2?
A
get more oxygen into the cells
Remove more carbon dioxide
3
Q
What does exercise increase?
A
The amount of CO2 in blood
4
Q
What are high labels of blood CO2 detected by?
A
Receptors in the aorta and carotid artery
5
Q
What do these receptors do?
A
Send signals to the brain
6
Q
Where does the brain send signals to?
A
The heart, causing it to contract more frequently and with more force
