mucosa of spongy part of the male urethra
the mucosal lining of the spongy (penile) portion of the male urethra, consisting of 2–3 layers of columnar epithelium except distally, where it becomes stratified squamous epithelium within the fossa navicularis.
Synonym(s): tunica mucosae partis spongiosae urethrae masculinaeTA
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Examples: glitazone, GI cocktail, etc.