1) What does the circulatory system do? Explain your answer a) Explain b) Don't explain 2) How many chambers does the human heart have? a) 1 b) 2 c) 3 d) 4 3) What are the chambers at the bottom of the heart called? a) atriums b) arteries c) ventricles d) capillaries 4) Where does the blood from the right side of the heart go? a) body b) lungs 5) What happens to the blood when it goes to the lungs? a) It gets oxygen b) It gives oxygen c) It becomes blue d) It gets valves 6) What are the chambers at the top of the heart called? a) Ventricles b) Atriums c) Capillaries d) Valves 7) Blood from the left side of the heart goes to the_________. a) lungs b) veins c) body d) valves 8) The blood that goes to the body is___________. a) deoxygenated b) blue c) delicious d) oxygenated 9) The movement of blood through the body is called_________. a) circulation b) digestion c) respiration d) oxygenation 10) What are the three types of blood vessels? a) arteries, veins, capillaries b) arteries, veins, valves c) arteries, valves, capillaries d) arteries, ventricles, capillaries 11) What stops the blood from flowing backwards? a) arteries b) valves c) veins d) capillaries 12) How many litres of blood are in the human body? a) 1 b) 5 c) 10 d) 20 13) __________ are like big roads that move blood through the body. a) Arteries and veins b) Capillaries and ventricles c) Atriums and ventricles d) Valves and pumps 14) Where does the blood give and take oxygen, waste, and nutrients? a) capillaries b) ventricles c) ribs d) Valves 15) The heart needs to have a rest sometimes when we sleep, so it stops beating.  a) True b) False c) It doesn't matter 16) The heart is a _________. a) bone b) muscle c) skin d) cartilage 17) The ribs_________ the heart. a) protect b) pump c) control d) oxygenate 18) Is our pulse rate faster or slower during sleep. a) faster b) slower 19) What happens to our pulse when we exercise? a) It gets faster. b) It gets slower. c) It stays the same. d) It can't be measured. 20) The air tube that joins the nose and mouth to the lungs: a) lungs b) diaphragm c) heart d) windpipe 21) The muscle we use to breathe: a) heart b) skin c) diaphragm d) lungs 22) The gas we need to breathe in: a) carbon dioxide b) oxygen c) nitrogen d) water vapour 23) Lives in the body of a living thing: a) parasite b) host c) mucus d) oxygen 24) The living thing that a parasite infects: a) parasite b) host c) diaphragm d) heart

Circulatory System

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