The muscular layer of the intestinal wall contains most of the smooth muscle and controls the majority of intestinal movements.
What is muscular layer ?
- The muscular layer is the muscular region of many organs of the vertebrate body adjacent to the submucosa.
- Involved in intestinal movements such as peristalsis.
- Latin tunica muscles can also be used.
- The muscular layer of the stomach lies just below the serosa and is closely connected with it.
- It consists of 3 sets of smooth muscle fibers: Vertical, circular, oblique.
- The three layers of smooth muscle consist of the outer longitudinal muscle, the central circular muscle, and the inner oblique muscle.
- As these muscles are built, their contents are mixed and broken down into a suspension of nutrients called chyme, which is extruded into the duodenum.
- The three muscle layers consist of the external oblique, internal oblique, and transversus abdominis muscles.
- Medially, the fascia of the abdominal muscle joins the anterior and posterior rectus sheaths.
- Deep in the muscle layer are the transverse fascia and the retroperitoneal space.
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