what is outer layer of...... alimentary canal made up of. different name than other...want that exception.
Answers
Answer:
outer layer is known as serosa....
but in oesophagus there is an exception ..
it is known as tunica adventitia...
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Hola!
And: Serosa
Serous membrane (or serosa) is a smooth membrane that consists of a thin connective tissue layer and a thin layer of cells that secrete serous fluid. Serous membranes line and enclose several body cavities, known as serous cavities, where they secrete a lubricating fluid to reduce friction from muscle movements.
Serosa is not to be confused with adventitia, a connective tissue layer that binds together structures rather than reduces friction between them.
The serous cavities are formed from the intraembryonic coelom and are basically an empty space within the body surrounded by a serous membrane. Early in embryonic life, visceral organs develop adjacent to a cavity and invaginate into the bag-like coelom.
Therefore each organ becomes surrounded by a serous membrane—they do not lie within the serous cavity. The layer in contact with the organ is known as the visceral layer, while the parietal layer is in contact with the body wall.