🌿 Science & Nature Trivia
Quiz Set 8 — Human Body
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
How many bones are in the adult human body?
The adult human skeleton contains 206 bones, though babies are born with about 270 that fuse over time.
Question 2 of 10
What is the largest bone in the human body?
The femur (thighbone) is the longest and strongest bone in the human body.
Question 3 of 10
What organ pumps blood through the body?
The heart pumps about 7,500 liters of blood through the body every day.
Question 4 of 10
How many chambers does the human heart have?
The human heart has four chambers: two atria (upper) and two ventricles (lower).
Question 5 of 10
What is the smallest bone in the human body?
The stapes (stirrup bone) in the middle ear is only about 3 mm long.
Question 6 of 10
Which organ filters blood and produces bile?
The liver filters blood, produces bile for digestion, and performs over 500 vital functions.
Question 7 of 10
How many teeth do adults typically have?
Adults typically have 32 teeth, including 4 wisdom teeth (third molars).
Question 8 of 10
What part of the brain controls balance?
The cerebellum, located at the back of the brain, coordinates voluntary movements and balance.
Question 9 of 10
What type of blood cell fights infection?
White blood cells (leukocytes) are key components of the immune system that fight infections.
Question 10 of 10
What is the longest muscle in the human body?
The sartorius muscle runs from the hip to the knee and is the longest muscle in the body.