1) What is the main function of the circulatory system? a) breathe in oxygen b) transport oxygen, water, and nutrients to all parts of the body c) take carbon dioxide out of the blood d) carry blood 2) What are the 3 main parts of the circulatory system? a) blood, arteries, blood vessels b) heart, blood vessels, oxygen c) heart, blood vessels, and blood d) blood, lungs, heart 3) This is responsible for holding oxygen and nutrients. a) blood b) blood vessels c) heart 4) This part of the circulatory system is responsible for carrying the blood. a) blood b) blood vessel c) heart 5) This part of the circulatory system is the pump. a) blood b) blood vessel c) heart 6) Blood travels to the lungs to pick up _________. a) carbon dioxide b) oxygen c) nutrients 7) What organ do you think the blood picks up nutrirents from? a) brain b) heart c) small intestines d) large intestines e) kidneys f) lungs

Circulatory System

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