Question

Given the diagrammatic representation of "T.S. of Gut". Select the correct option in which labelled part and their comments are not matched correctly?

A. A = serosa :- outermost layer and is made up of thin mesothelium with some connective tissues
B. B = Submucosa :- It is made up of loose connective tissue containing nerves, blood and lymph vessels
C. D = Mucosa :- This layer forms irregular, finger like Folds in stomach
D. C = Muscularis layer :- It is formed by striated muscles and usually arranged into an inner

Answer 1

The human gastrointestinal (GI) lot harbors an unpredictable and dynamic populace of microorganisms, the gut microbiota, which apply a stamped effect on the host during homeostasis and infection. Different variables add to the foundation of the human gut microbiota during the earliest stages.

Complete solution: The mass of the human alimentary canal comprises four particular layers: the mucosa, sub-mucosa, muscularis and serosa.
Mucosa – The mucosa is the deepest layer of the gastrointestinal canal that encompasses the lumen (open space inside the cylinder). This layer comes in direct contact with processed food. This layer structures rugae in the digestive and villi in the small digestive tract. The mucosa is composed of epithelium – deepest layer, answerable for generally digestive related, absorptive and secretory cycles. Mucosa likewise contains cup cells which produce bodily fluid that ensures the epithelial surface.
Submucosa – The submucosa comprises a thick sporadic layer of connective tissue with huge veins, lymph vessels and nerves. In duodenum, organs are additionally present in it. Sub-mucosa underpins the mucosa.
Muscularis/Muscular layer – Muscularis is a slight layer of smooth muscles organized into an external longitudinal layer and an internal roundabout layer. The round layer keeps food from voyaging in reverse and the longitudinal layer abbreviates the canal. The planned constriction of these layers is called peristalsis (substitute compression and unwinding, which pushes ingested food). At various focuses along the gut the roundabout muscle thickens into structures called sphincters.
Serosa – Serosa is the farthest layer of the human alimentary canal. It consists of a slight layer of secretory epithelial cells, with some connective tissues underneath. The epithelial layer produces the greasing up serous liquid. This liquid has a consistency like dainty bodily fluid. These cells are bound firmly to the fundamental connective tissue. The connective tissue layer gives the veins and nerves for the overlying secretory cells, and furthermore fills in as the coupling layer which permits the serosa to hold fast to organs and different structures.
Correct Option: - (A) A = serosa :- outermost layer and is made up of thin mesothelium with some connective tissues.

Note: The digestive related framework comprises the digestive related or alimentary canal and its related organs, for example, salivary organs, the liver, and the pancreas. Its capacities in the preparing, processing, and ingestion of food, trailed by disposal of the buildup.