Human Body Quiz Questions With Answers: 34 Easy to Hard
2026-10-21 · 6 min read
These human body quiz questions with answers are for anyone curious about the bones, organs and systems that keep us alive every second of the day. We put together 34 questions split into three rounds. Easy covers the parts of the body most people learn about at school, from the heart and the rib cage to the biceps and the wrist. Medium moves on to medical names for bones, blood vessels, skin and the airways. Hard goes after the tiny bones of the ear, the heart's natural pacemaker and the hormones behind fight or flight. Each question has one correct answer in bold right underneath, followed by a one-line fact. Use it in a classroom, at a family quiz night or as revision before a biology test. When you want real pressure, the live version gives you 10 seconds per question against a real opponent, and faster correct answers score more.
Play it live
Reading the answers is one thing. Remembering them in under 10 seconds is another. Play the live human body quiz and face another player on the same 7 questions, with question 7 counting double. Or try Quick match for a random opponent on any topic.
Easy human body quiz questions
Which organ pumps blood around the body?
Answer: The heart
It beats around 100,000 times a day in a typical adult.Which gas does the blood pick up in the lungs and carry to the body?
Answer: Oxygen
Every cell needs oxygen to release energy from food.Which type of blood cell fights infection?
Answer: White blood cells
They attack bacteria, viruses and other invaders.Which muscle on the front of the upper arm do you flex to "make a muscle"?
Answer: The biceps
Its name means "two heads" because it has two starting points.What bony structure protects the heart and lungs?
Answer: The rib cage
It is made of the ribs, the breastbone and part of the spine.Which joint connects the hand to the arm?
Answer: The wrist
It contains eight small bones called carpals.Which part of the leg is the tibia found in?
Answer: The lower leg
It is the shin bone, the larger of the two lower leg bones.Are babies born with more or fewer bones than adults?
Answer: More
Many of a baby's bones fuse together as the child grows.Which body parts together hold more than half of all your bones?
Answer: The hands and feet
Together they contain 106 of the 206 bones in an adult skeleton.What is the common name for the clavicle?
Answer: The collarbone
It connects the shoulder blade to the breastbone.What is the tube that carries food from the mouth to the stomach?
Answer: The esophagus
Waves of muscle squeeze food down it, even if you are upside down.Which sense is controlled by the cochlea?
Answer: Hearing
The cochlea is a snail-shaped, fluid-filled part of the inner ear.
Medium human body quiz questions
What is the medical name for the shoulder blade?
Answer: Scapula
It is a flat, triangular bone at the back of the shoulder.What is the medical name for the breastbone?
Answer: Sternum
Most of the ribs connect to it through cartilage.Which pigment mainly gives skin and hair their colour?
Answer: Melanin
It is made by cells called melanocytes and helps protect skin from sunlight.What is the outer layer of the skin called?
Answer: The epidermis
It constantly sheds dead cells and replaces them from below.Which part of the brain mainly controls balance and coordination?
Answer: The cerebellum
It sits at the back of the brain, below the cerebrum.Which blood vessels carry blood back to the heart?
Answer: Veins
Many of them have small valves that stop blood flowing backwards.What are the smallest blood vessels in the body called?
Answer: Capillaries
Their walls are so thin that oxygen passes straight through them.Which organ makes bile?
Answer: The liver
The gallbladder stores the bile until it is needed to digest fat.What are the bones of the fingers and toes called?
Answer: Phalanges
Each finger has three, while each thumb has two.Which butterfly-shaped gland in the neck helps control metabolism?
Answer: The thyroid gland
Its hormones affect how fast the body uses energy.What is the medical name for the voice box?
Answer: The larynx
It holds the vocal cords, which vibrate to make sound.Which tube carries air from the throat to the lungs?
Answer: The trachea
It is better known as the windpipe and is held open by rings of cartilage.
Hard human body quiz questions
What are the three tiny bones of the middle ear?
Answer: The malleus, incus and stapes
They are often called the hammer, anvil and stirrup.What is the medical name for the tailbone?
Answer: The coccyx
It is formed from several small vertebrae fused together.What is the heart's natural pacemaker called?
Answer: The sinoatrial node
It sends the electrical signal that starts each heartbeat.Which part of the brain links the nervous system to the pituitary gland?
Answer: The hypothalamus
It helps control body temperature, hunger and thirst.Where the optic nerve leaves the eye there are no light receptors. What is this spot called?
Answer: The optic disc
It creates a blind spot in each eye that the brain fills in.Which lower arm bone is on the thumb side?
Answer: The radius
The other lower arm bone, the ulna, is on the little finger side.What are the tiny finger-like projections lining the small intestine called?
Answer: Villi
They greatly increase the surface area for absorbing food.Which hormone do the adrenal glands release in a fight or flight moment?
Answer: Adrenaline
It is also called epinephrine and makes the heart beat faster.What is the largest muscle in the human body?
Answer: The gluteus maximus
It is the main muscle of the buttocks and helps you stand up and climb.Which chamber of the heart pumps oxygen-rich blood out to the body?
Answer: The left ventricle
Its wall is thicker than the other chambers because it pumps the hardest.
Play it live against a real opponent
Think you would score 34 out of 34? Prove it under pressure. The live human body quiz puts you against another player on 7 questions about bones, organs, blood and the brain, with 10 seconds each. Send a challenge link to a classmate or a friend, or jump into Quick match to face someone new on any topic. Every match earns XP toward your Human Body level and moves you up the leaderboards.
FAQ
Are these human body questions good for kids?
Yes. The Easy round suits younger players and anyone learning about the body at school. The Medium and Hard rounds use more medical names and suit older students and adults.
Are these questions useful for revising for a biology test?
They make a good warm up. The questions cover the skeleton, the circulatory, respiratory, digestive and nervous systems, and the main glands, which are common topics in school biology.
How does the live human body quiz work?
Two players answer the same 7 questions with 10 seconds per question. Faster correct answers score more points, and question 7 counts double. Each match earns XP toward your Human Body topic level and helps you climb leagues and leaderboards.