Human Body Quiz
Test your knowledge about the fascinating human body with this engaging quiz!
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Quiz Questions & Answers
Review every prompt, the correct responses, and helpful context to prep for your own run-through.
Question 1: What is the only human organ capable of completely regenerating itself?
Liver
Brain
Lung
Heart
Question 2: What is the strongest muscle in the human body based on its weight?
Gluteus
Heart
Masseter
Tongue
Question 3: Which bone is the longest and strongest in the human skeleton?
Humerus
Femur
Tibia
Fibula
Question 4: What specific protein gives human skin and hair its natural color?
Collagen
Melanin
Keratin
Elastin
Question 5: What part of the eye physically changes size to control light?
Retina
Cornea
Pupil
Iris
Question 6: Which organ is primarily responsible for detoxifying harmful substances in the body?
Liver
Pancreas
Spleen
Kidneys
Question 7: What is the largest organ in the human body?
Liver
Heart
Lung
Skin
Question 8: What is the primary function of red blood cells?
Fight infections
Transport oxygen
Clot blood
Digest food