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Explore the human skeleton in interactive 3D — what bones do, the major parts, and a hands-on 3D explorer with a scored quiz.

Meet the 206 bones that hold you up, keep you safe, and let you move. In this module you'll explore a real human skeleton in interactive 3D, then prove what you've learned.

The Skeletal System

Dissect the human eye in interactive 3D — how light becomes sight, every major part, and a hands-on 3D explorer with a scored quiz.

Your eye works like a living camera — bending light, focusing it, and turning it into pictures in your brain. In this module you'll take apart a 3D eyeball, part by part, and learn exactly how you see.

The Eye & How We See

Discover the muscular system in interactive 3D — the three muscle types, how muscles pull in pairs, and a hands-on 3D explorer of the major muscle groups with a scored quiz.

More than 600 muscles pull on your bones to move you — and never push. In this module you'll meet the three kinds of muscle, learn how they work in pairs, and explore the major muscle groups on an interactive 3D figure.

The Muscular System

Explore the human body in interactive 3D. Rotate a real skeleton and dissect the eye, then test yourself — built for middle and high school students.

Anatomy isn't something to memorize from a flat diagram — it's something to explore. In this course you'll grab a 3D human skeleton and spin it around, then slice open a 3D eyeball to see exactly how you see.

Human Body Systems — Interactive 3D Anatomy