the circulatory system Flashcards
1
Q
what is the human circulatory system made up of
A
the heart, blood vessels and blood
2
Q
what does the heart do
A
pumps blood all the time to all parts of our body
3
Q
why does our heart rate increase when we exercise
A
the body requires a greater supply of digested food and oxygen that is carried in the blood to various parts of the body. the body also rapidly removes the carbon dioxide produced
4
Q
what does the blood vessels do
A
some blood vessels carry blood from our heart to all the parts of our body. other blood vessels carry blood from other parts of our body back to the heart
5
Q
what does the blood do
A
blood transports digested food, oxygen , water , carbon dioxide and other waste materials to all parts of our body.
