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🫁 Your Body Systems

Discover the amazing teamwork of the systems inside your body!

2
lessons
~15 min
to learn
🔬 Science
subject
Ages 6–12
level
Start the course →

What you’ll learn

  1. Describe what a body system is and explain the jobs of the skeletal, muscular, and digestive systems.Your body is made of systems that each do a special job. The skeletal system of 206 bones holds you up and protects your organs, the muscular system moves you by pulling on bones, and the digestive system turns food into fuel your body can use.
  2. Explain how the circulatory, respiratory, and nervous systems work and how all systems cooperate.The circulatory system pumps blood to deliver oxygen and nutrients, the respiratory system brings in oxygen through the lungs, and the nervous system controls everything from the brain. All the systems are connected and work as one amazing team.

Questions this course answers

How many bones are in an adult human body?

An adult body has 206 bones that give it shape and protect important organs.

What do muscles pull on to make you move?

Muscles work by pulling on bones, so the muscular and skeletal systems are a team.

Where does digestion begin?

Digestion starts in the mouth, where teeth chew and saliva begins breaking food down.

Which organ pumps blood around your body?

The heart is the captain of the circulatory system, pumping blood to every part of the body.

What gas do your lungs take from the air for your body to use?

The lungs pull oxygen from the air, and blood carries it all over the body.

What is the control center of the nervous system?

The brain is the control center, sending fast messages through nerves to run the whole body.

Grounded in trusted sources

  • Britannica, "Human body systems", https://www.britannica.com/science/human-body-systems-2237111
  • Britannica, "Human body", https://www.britannica.com/science/human-body
  • Nemours KidsHealth, "Your Heart & Circulatory System", https://kidshealth.org/en/kids/heart.html
  • Generation Genius, "Human Body Systems for Kids", https://www.generationgenius.com/blog/human-body-systems-for-kids/

Every Wunder lesson is built from real, reputable sources — never invented.

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