How to draw a simple vertebra

Learn how to draw and identify the general components of a vertebra.

How to Draw a Simple Skull, step-by-step

Learn how to draw a skull and then try to draw the individual facial bones onto it!

Excellent video animation and explanation of what an electrochemical gradient is and how it’s formed.

A really nice animation of each.

The membrane potential of a neuron is closest to the equilibrium potential of the neuron’s leakiest ion (at rest, this is K+)