Human Body World

Brain, heart, lungs, bones, muscles, senses, immunity, and the systems that keep a human body working.

About Human Body World

Human Body World explores real anatomy and physiology through kid-friendly explanations and non-graphic scientific imagery. See how the brain sends signals, the heart circulates blood, lungs exchange gases, bones and muscles create movement, digestion absorbs nutrients, skin protects the body, senses gather information, and immune defenses respond to threats.

Human brain MRI — Brain MRIMagnetic resonance imaging can show detailed soft tissue without opening the skull.

Normal human chest X-ray — Chest X-RayThe lungs, heart, ribs, and diaphragm can be examined in one radiograph.

Human blood smear under a microscope — Blood Under a MicroscopeRed blood cells, white blood cells, and platelets form a moving tissue.

Brain & Nervous System

Brain regions, neurons, spinal cord, nerves, reflexes, memory, and sleep.

Heart & Blood

Heart chambers, circulation, vessels, blood cells, pulse, and clotting.

Lungs & Breathing

Airways, alveoli, diaphragm, oxygen, carbon dioxide, and breathing control.

Digestive System

Mouth, stomach, intestines, liver, pancreas, absorption, and gut microbes.

Bones

Skeleton, joints, marrow, growth, mineral storage, protection, and X-rays.

Muscles

Skeletal, cardiac, and smooth muscle, movement, tendons, energy, and repair.

Skin

Skin layers, sweat, pigment, hair, nails, healing, and the skin microbiome.

Five Senses

Sight, hearing, smell, taste, touch, balance, and body-position sensing.

Immune System

Barriers, white blood cells, antibodies, lymph nodes, memory, and vaccines.

Body Facts

Surprising facts about cells, organs, blood, bones, senses, and body teamwork.

Games

Play and learn with human-body-themed educational games.

Coming Soon