04. Medical science: bone: osteoclasts
Electron microscopy

Osteoclast cells (gold) on the surface of a bone. Osteoclasts are large, multi- nucleated cells that form from the fusion of several macrophage cells in bone. Osteoclasts move by extending cellular processes.

They are normally present in bones to absorb and remove unwanted bone tissue during normal bone regeneration. Coloured scanning electron micrograph, Magnification x880.