Muscular layer

Muscular layer
Histological section of the ureter, showing the thick muscular layers surrounding the lumen.
Details
Identifiers
Latin	tunica muscularis
TA98	A05.4.01.010 A05.5.01.021 A05.6.01.004 A05.7.01.004 A05.7.03.011 A05.7.04.009 A05.8.02.008 A08.1.05.010 A08.2.01.006 A08.3.01.010 A09.1.02.012 A09.1.04.010 A09.2.03.007 A09.3.05.009 A09.4.02.011 A09.3.06.003 A09.4.02.018 A09.4.02.027
Anatomical terminology [edit on Wikidata]

This article is one of a series on the
Gastrointestinal wall
General structure Epithelium Mucosa Submucosa Circular muscle Longitudinal muscle Serosa Adventitia
Specific Meissner's plexus Auerbach's plexus
Organs Esophagus Stomach Intestines
v t e

The muscular layer (muscular coat, muscular fibers, muscularis propria, muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the submucosa. It is responsible for gut movement such as peristalsis. The Latin, tunica muscularis, may also be used.