Follow the flow.

Explore the vessels. Understand the heart. Connect anatomy to the clinic.

—named vessel entries
4 connected circulations

VESSEL EXPLORER

⌕REGION

Arteries Veins

Paired vessels have separate entries. Some small branches and venous pairs are grouped.

SCHEMATIC 3D

Whole-body circulationDrag to rotate · Scroll to zoom · Select a vessel

3D rendering is unavailable. Use the vessel explorer, Heart lab and Flow routes to study all anatomy.

Oxygen-rich Oxygen-poor→ Flow direction

Speed 1× Labels

Colors indicate relative oxygenation, not artery/vein identity. Arrows show normal direction; particle speed is illustrative.

INSIDE THE HEART

Two pumps.
One circulation.

Select a structure or follow the chamber-to-chamber route.

ANATOMICAL CUTAWAYAnterior orientation · patient’s left →

Heart cutaway showing four chambers, the septum, atrioventricular and semilunar valves, supporting chordae and arrows indicating normal blood flow.

Flow arrows are part of the anatomical plate. Numbered markers open structure notes.

Wapcaplet, Yaddah, Wnauta; revisions by Jmarchn · Wikimedia Commons · CC BY-SA 3.0

DIRECTION MATTERS

A continuous journey, two circuits.

The pulmonary circuit exchanges gases in the lungs. The systemic circuit delivers blood to the tissues.

ANATOMY → CLINICAL REASONING

Make the connections.

Eight anatomical correlates, with references and space for your own study notes.

YOUR STUDY NOTES

Keep the useful connections.

Notes save in this browser on this device. Export a copy to keep or share them.

General cardiovascular notesStored on this device only.

CardioAtlas · Major-vessel teaching atlasOriginal schematic geometry · Normal adult pathways · Educational use← All atlases Heart blood flow guide Privacy

TRANSPARENT PROVENANCE

Sources & model notes

What this atlas is

The rotatable body map is an original, hand-authored teaching schematic. It is not a segmented CT/MRI dataset or a clinically validated anatomical reconstruction. Vessel positions, diameters and distances are simplified. It covers major named vessels, not every branch, capillary or anatomical variant.

Flow paths are ordered in normal physiological direction. White arrows remain visible when animation is paused. Particle speed does not represent velocity, pressure, pulse timing or measured perfusion. Arteries and veins are named by direction relative to the heart; color indicates relative oxygenation.

Paired tibial veins, palmar arches and pulmonary vein pairs are grouped. The intracranial arterial network, small visceral branches, capillaries, portosystemic collaterals and cardiac conduction system are not reconstructed. Coronary geometry shows one right-dominant pattern.

Artwork & software

The heart cutaway is an independently licensed anatomical illustration by Wapcaplet, Yaddah and Wnauta, with later revisions by Jmarchn. The SVG is reproduced unchanged; interactive markers are added as a separate overlay. The plate and its presentation adaptations are licensed under CC BY-SA 3.0. No endorsement is implied.

The app and vessel coordinates were authored for this project. Three.js and OrbitControls are bundled under the MIT license. NeuroAxis inspired the exploratory format; its anatomical assets were not used. Clinical notes are teaching explanations, not individual diagnostic or treatment guidance.

Sources reviewed 10 October 2026. See attribution details and project source on GitHub.