Draw a small circle or oval for the cell body
Add a larger round shape around it if needed for the soma
Draw a smaller circle inside for the nucleus
Extend several short branching lines from the cell body for dendrites
Draw one long line extending from the cell body for the axon
Add small branch-like endings at the end of the axon
Sketch a few short gaps along the axon for myelin segments if desired
Refine the outline of the cell body and branches
Erase extra lines and clean up the drawing
Add labels if needed for dendrites, cell body, axon, and axon terminals