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.Which of these is part of the digestive system? (a) windpipe (b) backbone (c) liver (d) heart
- 2.🩺 Which body part has this job: taking in oxygen? (a) lungs (b) muscles (c) ribs (d) stomach
- 3.🩺 Which body part has this job: protecting the brain? (a) skull (b) muscles (c) skin (d) ribs
- 4.True or false: the windpipe is part of the respiratory system. (a) True (b) False
- 5.🦴 How many bones are there in a grown-up’s body?
- 6.Which of these is part of the circulatory system? (a) nerve (b) blood (c) thigh bone (d) spinal cord
- 7.True or false: covering the body is a job of the lungs. (a) True (b) False
- 8.True or false: the thigh bone is part of the respiratory system. (a) True (b) False
- 9.🫀 The backbone is part of which body system? (a) nervous system (b) skeletal system (c) digestive system (d) respiratory system
- 10.🩺 Which body part has this job: churning food? (a) kidneys (b) skin (c) brain (d) stomach
- 11.🔍 Which is the odd one out? (a) liver (b) backbone (c) thigh bone (d) skull
- 12.🦷 How many permanent teeth does a grown-up have in all?
- 13.🫀 The windpipe is part of which body system? (a) nervous system (b) digestive system (c) respiratory system (d) skeletal system
- 14.What is a job of the muscles? (a) covering the body (b) pulling bones to move (c) guarding heart and lungs (d) protecting the brain
- 15.🩺 Which body part has this job: pumping blood? (a) lungs (b) ribs (c) stomach (d) heart
- 16.True or false: covering the body is a job of the stomach. (a) False (b) True
- 17.True or false: churning food is a job of the lungs. (a) False (b) True
- 18.True or false: the thigh bone is part of the skeletal system. (a) True (b) False
- 19.🦵 The longest bone of the body is in the ___. (a) arm (b) thigh (c) finger (d) neck
- 20.👂 The smallest bone of the body is in the ___. (a) nose (b) ear (c) finger (d) toe
- 21.True or false: protecting the brain is a job of the skull. (a) True (b) False
- 22.🫀 The liver is part of which body system? (a) skeletal system (b) respiratory system (c) nervous system (d) digestive system
- 23.🩺 Which body part has this job: pulling bones to move? (a) kidneys (b) skin (c) muscles (d) brain
- 24.Which of these is part of the respiratory system? (a) brain (b) lung (c) spinal cord (d) blood vessel
- 25.🫀 The brain is part of which body system? (a) skeletal system (b) nervous system (c) respiratory system (d) digestive system
- 26.🔍 Which is the odd one out? (a) blood vessel (b) food pipe (c) heart (d) blood
- 27.True or false: the blood vessel is part of the nervous system. (a) False (b) True
- 28.Which of these is part of the respiratory system? (a) blood (b) windpipe (c) backbone (d) large intestine
- 29.🔍 Which is the odd one out? (a) blood (b) spinal cord (c) brain (d) nerve
- 30.True or false: taking in oxygen is a job of the lungs. (a) False (b) True
- 31.True or false: cleaning the blood is a job of the skull. (a) True (b) False
- 32.🧍 Which is the largest organ of the human body? (a) heart (b) skin (c) brain (d) kidney
- 33.🔍 Which is the odd one out? (a) spinal cord (b) brain (c) nerve (d) lung
- 34.What is a job of the brain? (a) thinking and learning (b) pulling bones to move (c) cleaning the blood (d) churning food
- 35.Which of these is part of the skeletal system? (a) liver (b) spinal cord (c) nerve (d) rib
- 36.👄 Where does digestion begin? (a) in the mouth (b) in the heart (c) in the stomach (d) in the lungs
- 37.Which of these is part of the nervous system? (a) nerve (b) food pipe (c) windpipe (d) large intestine
- 38.🦷 How many milk teeth does a child have?
- 39.Which of these is part of the nervous system? (a) lung (b) blood vessel (c) liver (d) spinal cord
- 40.🫀 The lung is part of which body system? (a) respiratory system (b) skeletal system (c) nervous system (d) digestive system
Answer key
- liver
- lungs
- skull
- True
- 206
- blood
- False
- False
- skeletal system
- stomach
- liver
- 32
- respiratory system
- pulling bones to move
- heart
- False
- False
- True
- thigh
- ear
- True
- digestive system
- muscles
- lung
- nervous system
- food pipe
- False
- windpipe
- blood
- True
- False
- skin
- lung
- thinking and learning
- rib
- in the mouth
- nerve
- 20
- spinal cord
- respiratory system
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