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