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