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Urinary Tract, epithelium and connective tissue

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This image shows the transitional epithelium and loose connective tissue that comprise the mucosa of the urinary tract.  

A transitional epithelium superficially resembles a nonkeratinized stratified squamous epithelium.  But note that the epithelial cells nearest to the apical (outer) surface are not flattened but cuboidal.

In this specimen from the renal pelvis, the connective tissue immediately beneath the epithelium is inconspicuous, obscured by a layer of smooth muscle (note elongated nuclei).  Beneath the smooth muscle is loose connective tissue, including conspicuous adipocytes (the clear round "bubbles").

RENAL IMAGE INDEX

Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

http://www.siumed.edu/~dking2/crr/RN022b.htm
Last updated:  29 August 2003 / dgk