Heart and pulse Flashcards
1
Q
Why does the heart rate increase the more the intense the exercise?
A
2
Q
What is heart rate?
A
3
Q
When we exercise, we need more glucose and oxygen to our muscles for respiration. How does the body do this?
A
4
Q
Why can’t we keep exercising forever?
A
5
Q
What is the circulatory system?
A
Heart, arteries, veins, capillaries and blood
