Some selected virtual reality worlds about the human body:

Lungs
Respiratory system serves for gas exchange in the body. Its main organ are lungs, where oxygen needed for cellular respiration enters the body tissue, while the waste product of respiration - carbon dioxide - leaves the tissue.
VRML version (offers more interactivity) - get free plugin!

Eye structure
The eye uses its lens to form an image on the its light sensitive epithelium, which is called the retina
Java version ( no plugin needed)
VRML version (offers more interactivity) - get free plugin!

Inner ear - excitation of sensory cells
When you click on the loudspeaker you see how the vibrations set both tectorial and basilar membrane in motion. The hair cells lying in the middle get excited as the cilia protruding from their apex move.
Java version ( no plugin needed)
VRML version (offers more interactivity) - get free plugin!

Cell membrane depolarization and the action potential
Depolarize the cell with the slider.There appears a passively spreading depolarization of the cell membrane which can give rise to spikes.
VRML version (offers more interactivity) - get free plugin!

Endocytosis with clathrin receptor molecules

At the beginning of this animation you are located outside the cell. You see the balls representing the cholesterol molecules that will be ingested. The animation shows how the cholesterol binds to the clathrin and the pinocytotic vesicle is formed. Finally you observe from inside of the cell the pinocytotic vesicle with clathrin-cholesterol complexes on its membrane.

VRML version (offers more interactivity) - get free plugin!

Tongue - types of taste buds (papillae)
Tongue contains areas for different types of taste. The taste sensitive cells are located on special structures - papillae.
Java version ( no plugin needed)
VRML version (offers more interactivity) - get free plugin!