3D Eye Anatomy and Image Formation
Explore a full cross-section with 16 types of interactive structures. Use a fixed image plane to compare normal vision, refractive and axial myopia or hyperopia, and their correction.
Open activity →Teaching resources
Human Biology Teaching: Anatomy, Physiology and Health
Free human biology resources for teaching and learning vision, hearing, movement, breathing, digestion, circulation, kidney function, blood glucose regulation and immunity.
Explore biology topics
Locate a structure, trace a process and compare conditions. Use observations to explain its function.
How Hearing Works: 3D Ear Lab
Explore outer, middle and inner ear structures and follow sound waves, mechanical vibrations and neural signals through five stages.
Open activity →Breathing and Gas Exchange: 3D Respiratory Lab
Explore the airways, lungs and diaphragm, compare breathing movements and examine gas exchange at the alveoli.
Open activity →3D Digestive System Classroom
Follow food through the digestive system and compare chewing, stomach mixing, bile emulsification, digestion and absorption.
Open activity →Nephron Explorer: Filtration and Reabsorption
Follow the glomerulus, Bowman's capsule, and renal tubule to see where filtration and reabsorption occur.
Open activity →Insulin and Blood Glucose Regulation Lab
Follow glucose from digestion to muscle cells and compare normal insulin, deficiency, excess and insulin resistance, including GLUT4 movement.
Open activity →Levels of Organization in Animals
Explore the human body, digestive system, stomach, tissues and cells in a 3D teaching model.
Open activity →Human Double Circulation Explorer — Draft
Trace a blood particle through pulmonary and systemic circulation, inspect heart chambers and valves, and pause or advance step by step.
Open activity →Immunity and Immunization Classroom — Draft
Identify three lines of defence and compare immune memory with a repeat response to the same antigen in classroom activities.
Open activity →Medication and First Aid Classroom Scenarios
Read simulated medicine information and practise decisions and the order of seeking help in classroom scenarios.
Open activity →Synapses and Signal Transmission
Explore synaptic structures, observe neurotransmitter release and compare what changes when receptors are blocked.
Open activity →Immune Pathways: Two-Player Challenge
Assemble humoral, cell-mediated and secondary immune response pathways, then compare cell roles in a shared-screen challenge.
Open activity →Bones, Joints and Muscles Virtual Lab
Explore bones and joints, test tendon attachments and compare biceps and triceps coordination during elbow movement.
Open activity →Body Castle Defense: Infectious Disease Classroom (Draft V10)
Observe four independent infection cases and their disease-causing microbes side by side, then make choices in a continuous school story about infection sources, transmission and susceptible people. Includes automatic or stepwise animation, five-case exploration and six questions. New story text is in Simplified Chinese.
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