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Human Body quiz: medium round

Ten questions that need a little thought. A good round to split the teams. Tap an option to answer, or send the whole round to your group.

  1. How many bones does an adult human have?

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    206. An adult skeleton has 206 bones.

  2. Which is the largest organ of the human body?

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    Skin. The skin is the largest organ.

  3. Which is the hardest substance in the human body?

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    Tooth enamel. The enamel on teeth is harder than bone.

  4. Which blood cells carry oxygen?

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    Red blood cells. Red blood cells carry oxygen using haemoglobin.

  5. Which is the longest bone in the body?

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    Femur. The femur, the thigh bone, is the longest.

  6. How many chambers does the human heart have?

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    Four. Two atria and two ventricles.

  7. In which part of the body is the smallest bone?

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    Ear. The stapes in the middle ear is the smallest bone.

  8. People of which blood group are called universal donors?

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    O negative. O negative red cells can be given to almost anyone in an emergency.

  9. Which organs filter the blood and make urine?

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    Kidneys. The two kidneys filter waste from the blood.

  10. Which organ makes insulin?

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    Pancreas. The pancreas makes insulin, which controls blood sugar.

More Human Body rounds

Next up: Human Body, tricky round. Or let the site choose for you with a quick round from mixed topics. Hosting for a group? See how to host a quiz and keep points on the scoreboard.