Findings

In this low-power image of an empty bladder, the folded mucosa is seen overlying the muscularis. As in the ureter, the mucosa consists of a transitional epithelium and subjacent lamina propria containing blood vessels.

Comment

Though not shown in this image, the muscularis consists of three layers of smooth muscle that interlace in the bladder wall and are not easily distinguished as separate layers.

Preparation

Paraffin section, hematoxylin and eosin

View

Low-power light microscopy

Specimen

Urinary bladder

Image Credit

V. Eroschenko, Ph.D.
Department of Biological Sciences
WAMI Medical Program
University of Idaho