Human Body Quiz: 15 Questions to Test Your Knowledge
The human body is an extraordinary machine made of billions of cells. Organs, systems, vital functions… Do you know exactly how it works?
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Frequently asked questions: The Human Body
A preview of what awaits you in this human body quiz: 15 multiple choice questions, each with a detailed explanation so you can learn as you play. Here are a few example questions (and their answers, so no cheating before you play!).
What is the largest organ of the human body?
Answer: The skin. The skin is the largest organ of the human body. In an adult, it covers about 1.5 to 2 square metres and weighs between 3 and 5 kilograms.
What is the approximate length of the small intestine in an adult?
Answer: 6 metres. The small intestine is about 6 metres long in an adult. It is the main site of nutrient absorption during digestion.
Which part of the brain controls balance and coordination of movement?
Answer: The cerebellum. The cerebellum, located at the back of the brain, is responsible for coordinating movement, balance and posture. It makes up about 10% of the brain's volume but contains more than half of its neurons.
Which is the most powerful muscle in the human body in proportion to its size?
Answer: The masseter (jaw muscle). The masseter, the jaw muscle, is the most powerful muscle in proportion to its size. It can exert a bite force of up to 70 kg in an adult.
What is the name of the protein that gives blood its red colour?
Answer: Haemoglobin. Haemoglobin is the protein found in red blood cells that gives them their red colour. It carries oxygen from the lungs to the cells and brings carbon dioxide back to the lungs.
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