Explore the human body in 3D — rotate it, zoom into it, take it apart layer by layer, and tap anything to find out what it is and what it does.

Anatomy 3D Body is an interactive anatomy atlas built for students, teachers, clinicians and anyone curious about how the body is put together. 197 named structures across 13 body systems, all rendered in real time on your phone, and all of it works without an internet connection.

◆ THIRTEEN BODY SYSTEMS

Skeletal · Joints · Muscular · Nervous · Cardiovascular · Respiratory · Digestive · Urinary · Endocrine · Lymphatic · Reproductive · Integumentary · Sensory

Switch to any system and the rest of the body fades to a faint outline, so you can follow the aorta from the heart to the pelvis, or trace the sciatic nerve from the lumbar plexus to the sole of the foot, without anything in the way.

◆ TAKE ORGANS APART, LAYER BY LAYER

Several structures open up step by step, the way an atlas plate builds a dissection:

• Kidney — whole, cortex, medulla, renal pelvis, vessels
• Eye — sclera, cornea, iris, lens, vitreous body, retina
• Brain — surface, lobes, deep structures, sliding sagittal cross-section
• Spine — cervical, thoracic, lumbar, sacrum
• Small intestine — duodenum, jejunum, ileum
• Heart — valves and papillary muscles inside the chamber wall
• Lungs — all five lobes
• Skull — frontal, parietal, temporal, sphenoid, maxilla and more

Tap any part and a labelled leader line points straight at it with its name, Latin term, region and a plain-English description of what it does.

◆ WATCH EACH SYSTEM WORK

Turn on animation and the body comes to life — the heart contracting, the lungs filling and emptying, a peristaltic wave travelling down the gut, a pressure wave running out along the arteries, an impulse flowing down the spinal cord. The veins stay still, because venous return has no pulse. It is off by default and one tap away.

◆ BRAIN EXPLORER

A dedicated brain tool with six views: the folded cortex, the four lobes in colour, the deep structures with the cortex faded back, a sagittal cross-section you can slide through, plus the brainstem and cerebellum on their own. Each view explains what you are looking at and why it matters.

◆ TOOLS FOR STUDYING

• Quizzes and flashcards to test yourself
• Notes you can attach to any structure
• Favourites for the ones you keep coming back to
• Search across every structure, system and region
• Cross-section planes through any axis
• Isolate mode to strip everything but one structure
• Per-layer opacity so you can ghost bone back and look through it
• Light and dark themes, adjustable text size, reduced-motion support

◆ WORKS COMPLETELY OFFLINE

The entire atlas ships inside the app. No downloads after install, no account, no sign-in, no sync. Your notes, favourites and progress stay on your device and are never uploaded. Study on a train, in a basement lecture theatre, or on a plane.

◆ ABOUT THE MODEL

The anatomical geometry is derived from BodyParts3D, © The Database Center for Life Science, licensed under CC BY-SA 2.1 Japan.

A few structures that dataset does not contain — the peripheral nerve tree, the internal structure of the kidney and eye, and the female reproductive organs — are drawn schematically from anatomical landmarks for teaching, and are labelled as such in the app so you always know what you are looking at.

Anatomy 3D Body is an educational reference. It is not a diagnostic tool and nothing in it is medical advice.