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The walls of the alementary canal, which is from the esophagus to the large intestine, comprise of 4 layers. The are: Mucosa, Submucosa, Muscularis Externa, and the serosa. The Mucosa is the innermost, while the serosa is the outermost. The Muscularis externa is the muscle layer, and typically made up of inner circular layer and outer longitudinal layer or smooth muscle cells. The submucosa is soft connective tissue containing blodd vessels, nerve endings from the intrinsic nerve plexus, and lymph nodules as well as lymph vessels.
What else can I help you with?
The walls of the GI tract are composed of how many layers of tissue?
The walls of the GI tract are composed of four main layers of tissue: mucosa, submucosa, muscularis, and serosa. Each layer has a specific function that contributes to the digestive process.
Where is the muscularis located?
Assuming you mean muscularis, it's a part of the layers found around our Gastrointestinal system and other systems in our body (Reproductive tract etc). The 4 layers are: 1. mucosa (epithelial layer) 2. submucosa 3. muscularis 4. serosa Muscularis has both longitudinal and circular muscle layers (in the GI tract this is smooth muscle which is used for peristalisis, haustration, etc). Muscularis layer is contractile and used in the GI tract for moving food through the system, or in the reproductive tract for contractions for birth, etc. Hope this helps?
This is on a crossword for school. Contractions of GI tract.?
Peristalsis Peristaltic contractions
Does the myenteric nerve plexus provides the major nerve supply to the GI tract wall and controls GI motility?
Yes, the large myenteric nerve plexus lies between the cirular and lomgitudinal muscle layers of the muscularis externa. Enteric neurons of this plexus provide the major nerve supply to the GI tract walls and controls GI tract motility. (page 778of Marieb, A&P 3rd edition)
What is the strongest muscle in the GI tract organ?
The stomach has the thickest walls and the strongest muscle in all the GI tract organs. : )
What is a part of the large intestine?
The GI (Gastrointestinal) tract or the Digestive Tract
Where does the GI tract end?
The anus
What is another name for gastrointestinal tract?
GI tract, GIT, digestive tract, digestion tract, alimentary canal
How does the histology of the GI tract change as you move from the esophagus to the stomach small intestine large intestine and anus?
The histology changes in each segment of the GI tract, but from the esophagus to anus it has four main layers that vary according to location. They are called the mucosa, the submucosa, muscularis, and serous layers. The real difference is in the small intestine which contains plicae circulares covered with villi and microvilli for absorption of nutrients.
The function of the projections of the mucosa of the GI tract is to?
The function of the projections of the mucosa of the GI tract is secretions and absorption. Digestion is also aided by these projections.
What system is the Large intestine a part of?
The GI (Gastrointestinal) tract or the Digestive Tract
What do bicarbonates do in the GI tract?
Neutralize acids.
