Atlas

A 3D human body you can take apart, wired to your own notes.

Atlas shows two reference bodies. The male one has 2,288 pieces. The female one has 888 pieces. Every structure carries an FMA identifier, so a question about the hepatic artery finds your notes whatever language they are in. The 3D geometry ships with the cartridge. Atlas needs no network connection.

The cartridge id is @mnemosyne-plugins/mnemo-atlas. Its code lives at Mnemosyne-OS/MnemoAtlas. The 3D viewer is Human Atlas by Ashe Magalhaes, under the MIT licence.

Open it

Open Atlas from its window in Mnemosyne OS, or ask the orb or the chat: "show the heart".

Look around the body

• Drag to turn, pinch or scroll to zoom, and click a structure to open its sheet.
• Reference body switches between Male and Female.
• Systems turns the fifteen systems on or off: Skeleton, Muscles, Heart, Nervous system, Digestive and the others. Skeleton and Organs are two quick presets.
• Regions frames head and neck, torso, abdomen, arm and hand, pelvis or legs. Study areas narrow further: the orbit, the circle of Willis, the popliteal fossa and more.
• Explode anatomy opens the body by stages, from Assembled to Every piece.
• Find a structure searches by name.

The sheet of a selected structure offers Isolate structure, Show surrounding anatomy, Hide this structure and Clear selection. View anatomical source links to the dataset the structure comes from. Reset brings everything back.

Guided visits

The path icon opens Guided visits. Each one walks stop by stop, with Previous and Next:

• Organs: Heart, Breathing, Digestion, Urinary tract, Reproductive tract.
• Nerves: Trigeminal nerve.
• Fascial lines: four muscle chains after Thomas Myers. The app notes that anatomists still debate this model.

The pulse icon makes the heart beat, at a schematic 72 per minute. The heart visit turns it on by itself. The beat is drawn in code, not measured on anyone.

Ask your memory

Select a structure, then press Ask what I know about this. Mnemosyne OS answers from your own vaults. If your memory holds nothing about it, the panel says so. The lookup runs only on that button, because each question costs a model call.

Review

Review what you know opens a quiz per organ system. Pick a run of 5, 10, 50 or Endless questions. Each question highlights one structure and offers four names from the same system. Look at it moves the camera onto the structure.

Missed structures come back the next day. The others move to a longer interval. The quiz only asks about structures named in your language. French and Spanish names come from Wikidata and are not reviewed by anatomists. The app says so once per language.

Hand gestures

With hand tracking on, Atlas takes these gestures: orbit, depth, zoom, recenter and select. Pinch and move to turn the body. Spread both pinched hands to open the body by stages. You can teach a pose for Exploded view. The hand icon lists the gestures and sets three speeds. The cartridge never sees the camera.

Where your data goes

• The anatomy is read from the cartridge's own files on your disk.
• Your review schedule and gesture settings are kept by Mnemosyne OS as the cartridge's saved state.
• Save this run to memory writes one review run into Atlas's own vault, only when you press it. That vault stays walled off from the rest of your memory until you unlock it.

Data sources, as credited in Source & credits:

• Male body: BodyParts3D, The Database Center for Life Science, CC BY 4.0.
• Female body: HuBMAP HRA, 3D Reference Organ Set for Female v1.5, CC BY 4.0.
• 54 peripheral nerves: Z-Anatomy, CC BY-SA 4.0.
• Structure names in other languages: Wikidata, CC0.

Atlas is an anatomical reference with simplified geometry. It is not a diagnostic or surgical tool.

For agents

Atlas exposes 24 actions. Every one works through the same control a person presses. Writes are refused while a review question is open.

Action	Effect	What it does
structures	read	Finds structures by words.
screen	read	Says what is on screen.
focus	write	Selects a structure, opens its sheet, isolates it.
showSystems	write	Chooses the systems drawn.
switchBody	write	Male or female reference.
explode	write	0 assembled, 100 every piece apart.
cameraView, rotate, resetView	write	Camera views and turning.
isolate, clearSelection, hideStructure	write	The sheet's buttons.
showPlace	write	A region or study area.
startTour, tourStep	write	Guided visits.
heartbeat	write	Starts or stops the heart.
reviewStart, reviewAnswer, reviewNext, reviewSkip, reviewRepeat, reviewScope, reviewStop	write	The quiz, by voice.
reviewState	read	Where the review stands. Never the open answer.

Voice examples: "make the heart beat", "explode the body to 40 percent", "quiz me on the digestive system, ten questions", "it is the liver", "next question".