MCQ – 89575

Correct Answer � A Explanation

A. Circumvallate Papillae:
Location: These are the largest papillae and are located on the posterior part of the tongue, arranged in a V-shape pointing towards the throat.
Histopath Features:
● They are surrounded by a trench or moat, hence the name “circumvallate” (meaning “surrounded by a wall”).
● The wall of the papilla contains serous glands known as Von Ebner’s glands, which secrete enzymes that aid in digestion.
● The surface of these papillae contains taste buds, which are involved in the sensation of taste.

B. Fungiform Papillae:
Location: These are mushroom-shaped papillae scattered across the tongue but are more concentrated on the tip and sides.
Histopath Features:
● They are larger than filiform papillae but smaller than circumvallate.
● They contain taste buds on their upper surface.
● The name “fungiform” (meaning “fungus-like”) is derived from their mushroom-like appearance.

C. Filiform Papillae:
Location: These are the most numerous papillae and cover most of the anterior two-thirds of the tongue’s dorsum.
Histopath Features:
● They are slender and conical in shape.
● Unlike the other types of papillae, filiform papillae do not contain taste buds. Their primary function is to provide a rough surface to the tongue, which aids in the manipulation of food.
● The tips of these papillae can sometimes become keratinized.

D. Foliate Papillae:
Location: These papillae are located on the sides of the tongue, just in front of the palatoglossal arch of the fauces.
Histopath Features:
● They appear as a series of vertical folds and grooves.
● They contain taste buds, and like the circumvallate papillae, they have associated serous glands (Von Ebner’s glands) that secrete enzymes.
● Their name “foliate” (meaning “leaf-like”) is derived from their appearance, which resembles the leaves of a book.