Class 3 GK Worksheet: Human Body Systems
Remember (Which team?): Digestive: food pipe, stomach, intestines, liver. Respiratory: windpipe, lungs. Circulatory: heart, blood vessels, blood. Nervous: brain, spinal cord, nerves. Skeletal: skull, ribs, backbone. Jobs: heart – pumps blood, lungs – take in oxygen, kidneys – clean the blood, skull – protects the brain, ribs – guard heart and lungs. Numbers: 206 bones, 4 chambers in the heart, 2 lungs, 2 kidneys, 32 grown-up teeth.
NameDateTime takenScore ___ / 40
- 1.🫀 The blood vessel is part of which body system? (a) digestive system (b) nervous system (c) circulatory system (d) respiratory system
- 2.🔍 Which is the odd one out? (a) blood (b) blood vessel (c) heart (d) small intestine
- 3.True or false: the rib is part of the skeletal system. (a) True (b) False
- 4.True or false: the large intestine is part of the digestive system. (a) True (b) False
- 5.Which of these is part of the nervous system? (a) windpipe (b) skull (c) blood vessel (d) nerve
- 6.True or false: the blood vessel is part of the nervous system. (a) True (b) False
- 7.What is a job of the brain? (a) protecting the brain (b) thinking and learning (c) guarding heart and lungs (d) pumping blood
- 8.True or false: the spinal cord is part of the circulatory system. (a) True (b) False
- 9.Which of these is part of the digestive system? (a) small intestine (b) thigh bone (c) backbone (d) lung
- 10.🦵 The longest bone of the body is in the ___. (a) arm (b) thigh (c) finger (d) neck
- 11.What is a job of the muscles? (a) pulling bones to move (b) churning food (c) pumping blood (d) taking in oxygen
- 12.🦷 How many permanent teeth does a grown-up have in all?
- 13.🫀 The liver is part of which body system? (a) respiratory system (b) digestive system (c) nervous system (d) circulatory system
- 14.🔍 Which is the odd one out? (a) blood (b) heart (c) blood vessel (d) brain
- 15.🫘 How many kidneys do we have?
- 16.True or false: taking in oxygen is a job of the skull. (a) False (b) True
- 17.🔍 Which is the odd one out? (a) large intestine (b) backbone (c) skull (d) thigh bone
- 18.👄 Where does digestion begin? (a) in the stomach (b) in the lungs (c) in the heart (d) in the mouth
- 19.🫀 The spinal cord is part of which body system? (a) respiratory system (b) digestive system (c) circulatory system (d) nervous system
- 20.🫀 The stomach is part of which body system? (a) respiratory system (b) skeletal system (c) digestive system (d) nervous system
- 21.🫀 The brain is part of which body system? (a) respiratory system (b) skeletal system (c) digestive system (d) nervous system
- 22.Which of these is part of the circulatory system? (a) blood (b) liver (c) backbone (d) skull
- 23.🧍 Which is the largest organ of the human body? (a) heart (b) skin (c) brain (d) kidney
- 24.👂 The smallest bone of the body is in the ___. (a) finger (b) nose (c) ear (d) toe
- 25.True or false: the liver is part of the digestive system. (a) True (b) False
- 26.Which of these is part of the respiratory system? (a) windpipe (b) liver (c) food pipe (d) small intestine
- 27.True or false: churning food is a job of the lungs. (a) False (b) True
- 28.True or false: pulling bones to move is a job of the lungs. (a) True (b) False
- 29.🩺 Which body part has this job: pumping blood? (a) kidneys (b) heart (c) ribs (d) muscles
- 30.🔍 Which is the odd one out? (a) stomach (b) blood (c) small intestine (d) food pipe
- 31.True or false: pumping blood is a job of the skin. (a) True (b) False
- 32.🩺 Which body part has this job: thinking and learning? (a) heart (b) brain (c) muscles (d) skull
- 33.What is a job of the heart? (a) pulling bones to move (b) thinking and learning (c) cleaning the blood (d) pumping blood
- 34.True or false: the thigh bone is part of the circulatory system. (a) False (b) True
- 35.🫀 The blood is part of which body system? (a) respiratory system (b) nervous system (c) digestive system (d) circulatory system
- 36.🫀 The nerve is part of which body system? (a) respiratory system (b) digestive system (c) nervous system (d) circulatory system
- 37.True or false: cleaning the blood is a job of the kidneys. (a) False (b) True
- 38.What is a job of the skull? (a) protecting the brain (b) cleaning the blood (c) guarding heart and lungs (d) pumping blood
- 39.True or false: the brain is part of the circulatory system. (a) True (b) False
- 40.True or false: taking in oxygen is a job of the lungs. (a) True (b) False
Answer key
- circulatory system
- small intestine
- True
- True
- nerve
- False
- thinking and learning
- False
- small intestine
- thigh
- pulling bones to move
- 32
- digestive system
- brain
- 2
- False
- large intestine
- in the mouth
- nervous system
- digestive system
- nervous system
- blood
- skin
- ear
- True
- windpipe
- False
- False
- heart
- blood
- False
- brain
- pumping blood
- False
- circulatory system
- nervous system
- True
- protecting the brain
- False
- True
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