2nd Flashcards
1
Q
What is an artery?
A
- away from heart
- high pressure
- thick muscular walls
2
Q
What is a capillary?
A
- through tissue
- low pressure
- one cell thick walls
3
Q
What is a vein?
A
- towards heart
- low pressure
- thin walls
4
Q
What happens every time the heart beats?
A
- walls arteries stretch a bit
- contract back to force blood along
- when contract felt as pulse
5
Q
How can you measure your heart rate?
A
Use finger HR monitor
6
Q
What happens to your heart rate when you do exercise?
A
- heart works harder
- heart rate increases compared to rest
