Please match the answers with the correct statement.
1.
Vessels that carry blood from the muscles back to the heart are called?
2.
The body system that includes the heart, blood vessels, and blood are?
3.
The substance in your blood that helps it clot is?
4.
The method of determining exercise intensity by estimating it without measuring it?
5.
The highest your heart rate ever gets is called?
key words
vein
cardiovascular system
Fibrin
Maximal Heart Rate
Target Heart Rate