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Christine Therese D. Olasiman added a photo 3 years, 10 months ago The digestive tract is a lengthy, continuous tube that measures roughly 9 meters in length. It has two exits to the outside, one through the mouth and the other through the anus. Although there are differences in each location, the basic structure of the wall remains consistent throughout the tube’s length.The digestive tract’s wall is made up of four layers, or tunics:
Mucosa
Submucosa
Layer of muscle
The serous layer, also known as the serosa, is a layer of the skin thatThe mucosa, also known as the mucous membrane layer, is the wall’s innermost tunic. It lines the digestive tract’s lumen. The mucosa is made up of epithelium, lamina propria, a loose connective tissue layer beneath it, and the muscularis mucosa, a thin layer of smooth muscle. The mucosa develops folds in specific areas, increasing the surface area.
The mucosa is surrounded by a thick layer of loose connective tissue called the submucosa. Blood vessels, lymphatic vessels, and nerves are all found in this stratum. This layer could have glands embedded in it.
The smooth muscle that controls digestive tract movements is divided into two layers: an inner circular layer and an outer longitudinal layer. Between the two muscular layers is the myenteric plexus.
The outermost layer of the digestive tract is a connective tissue termed adventitia, which is located above the diaphragm. Serosa refers to the area beneath the diaphragm.
Made my Histology art about the Digestive System Body Tissues using canva.
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