Spherical cluster (neurosphere) of neurons with radiating beams of blinding neon light, differentiated from embryonic stem cells (for the record, those are just cellular processes branching out from individual cells) confocal credit: Sharona Even-Ram
Coloured scanning electron micrograph (SEM) of a red blood cell squeezing out of a torn capillary. A capillary is the smallest type of blood vessel, often only just large enough for red blood cells to pass through.
Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells. ~ Our World Through A Microscope