Questions: Pseudostratified columnar epithelium's primary function is protection filtration secretion re-absorption

Pseudostratified columnar epithelium's primary function is protection filtration secretion re-absorption

Solution

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The answer is: secretion.

Explanation for each option:

  1. Protection: While pseudostratified columnar epithelium can provide some level of protection, especially in the respiratory tract where it traps particles in mucus, its primary function is not protection.

  2. Filtration: Filtration is not a primary function of pseudostratified columnar epithelium. Filtration is more commonly associated with structures like the glomeruli in the kidneys.

  3. Secretion: This is the correct answer. Pseudostratified columnar epithelium is primarily involved in secretion, particularly of mucus by goblet cells, which is crucial in the respiratory tract for trapping dust and microorganisms.

  4. Re-absorption: Re-absorption is not a function of pseudostratified columnar epithelium. This function is more relevant to epithelial tissues in the kidneys and intestines.

In summary, the primary function of pseudostratified columnar epithelium is secretion, particularly of mucus in the respiratory tract.

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