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