1) It carries oxygen to all cells and collects carbon dioxide to the lungs. a) circulatory system b) Digestive system c) Respiratory system d) Excretory system 2) Lungs send blood with oxygen to the_________________. a) Heart b) Arteries c) Veins d) Capillaries 3) The heart receives carbon diioxide and send it to the _________________. a) Arteries b) stomach c) windpipe d) lungs 4) Oxygen and Carbon Dioxide is transported by the__________________________. a) oxygen b) Blood c) Arteries d) Veins 5) Heart sends oxygen to all cells through__________________. a) Capillaries b) Veins c) Arteries d) Blood 6) Then,_________________ and cells. a) veins b) Arteries c) Blood d) Capillaries 7) Heart receives carbon dioxide and sends it to the lungs through the ______________ and ______________. a) Arteries b) veins c) Capillaries d) Blood

Circulatory System

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