Question

What Mucus secreting goblet cells are part of?

Answer 1

Mucus may be a normal, slippery and stringy fluid substance produced by many lining tissues within the body. It's essential for body function and acts as a protective and moisturizing layer to stay critical organs from drying out. Mucus also acts as a trap for irritants like dust, smoke, or bacteria.

Complete answer:
Goblet cells are simple columnar cells shaped like epithelial cells that secrete gel-forming mucins, like mucin MUC5AC. The goblet cells mainly use the merocrine method of secretion, secreting vesicles into a duct. Mucous secreting goblet cells are a part of the columnar epithelium.

Goblet cells are modified epithelial cells that secrete mucus on the surface of mucous membranes of organs, particularly those of the lower alimentary canal and airways. Goblet cells are mostly found scattered within the epithelia of the tiny intestines and tract. The morphology of goblet cells reflects their function, with the cell containing all the organelles necessary for the assembly of glycosylated proteins called mucins.

After exocytosis of the vesicles onto the surface of mucous membranes, the mucins become hydrated and form mucus. Mucus is definitely washed out during histological preparation, which is why it stains very poorly with hematoxylin and eosin. But since mucins are heavily glycosylated, meaning they contain tons of oligosaccharides, they stain purple with the periodic acid-Schiff method (PAS).

Thus, Mucus secreting goblet cells are part of columnar epithelium.

Note: The skeleton serves as the body's structural framework. The skeletal system was brilliantly designed to allow movement, store minerals, protect vital organs, bear the body's weight, and distribute forces. The mechanics for storing and producing blood cells are housed within its spongy interiors.