SplasheryPlayground
Neuron Specimen, standing in a box with a red wall and a green wall.

Please do not tap the glass.

Neuron Specimen

A textbook nerve cell on a lit microscope slide: dendrites, a cell body with its nucleus and Nissl bodies, a myelinated axon, and terminals.

Open in the PlaygroundHow to play

The facts

Shelf
Tiny World
Kind
Built from a recipe
Sound
Yes
Licenses
CC0, MIT

How to play, in the Playground

Tap the cell to stimulate it there. In Splash, change the stain or turn Focus.

Its controls

ControlKindRangeStart
Fire a spikeTap
FocusSlider0 to 100%100%
Fire a spikeButton
StainList3 choicesNissl · cresyl violet

About it

From a concept by Ryan Kamp. A textbook nerve cell on a lit microscope slide: dendrites, a cell body with its nucleus and Nissl bodies, a myelinated axon, and terminals. At full Focus, most screens draw 32,768 splats, low-memory phones 8,192.

A tap is a stimulating electrode: the signal spreads through the dendrites to the cell body, which fires a spike down the axon, node to node. The waveform is the Hodgkin-Huxley squid axon model, slowed; this is a schematic, not a measured neuron. Nissl dyes the Nissl bodies and leaves the axon pale, Golgi turns the neuron black on amber, and H&E shows pink cytoplasm and blue-purple nuclei. Lower Focus: pairs of splats merge into one, keeping mass, center, and covariance, while the slide stays lit. Made by Ryan Kamp, CC0; code MIT.

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