Epithelium: Transitional Epithelium (Urothelium)

#54 Urinary Bladder, Human, H&E

This is a special, highly impermeable, type of stratified epithelium. The surface cells change their shape depending upon the demands of the contents of the lumen. In this slide they are dome-shaped because the bladder is empty and is in the contracted state. Consult electron micrographs to understand the morphological changes that accompany expansion and contraction of the lumen.

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