Muscular layer of bladder
Tunica muscularis vesicae
- Synonym: Muscular coat of bladder
- Related terms: Muscular layer; Muscular coat
Definition
The bladder is composed of the four coats: serous, muscular, submucous, and mucous coats.
The muscular coat (tunica muscularis) consists of three layers of unstriped muscular fibers: an external layer, composed of fibers having for the most part a longitudinal arrangement; a middle layer, in which the fibers are arranged, more or less, in a circular manner; and an internal layer, in which the fibers have a general longitudinal arrangement.
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