Question

Which of the following papillae do not contain taste buds?
A. Filiform
B. Fungiform
C. Circumvallate
D. None of the above

Answer 1

Hint: Papillae are humps present or rest on the surface of the tongue and these papillae give the tongue a rough touch. Taste buds which are a sensory organ sit on these papillae which comprise four basic tastes, i.e., sour, sweet, salt and bitter.

Complete answer:
Based on the types of Papillae tongue have four kinds of papillae i.e. filiform, fungiform, foliate, circumvallate. As shown in the figure:

A. Filiform papillae are the most common type of papillae having a wired shape or thin structure. But these papillae do not contain any taste buds on it, rather they are responsible for the texture of the tongue and also for the sensation of touch.
B. Fungiform papillae are the mushroom-shaped present on the dorsal anterior edge of the tongue. These papillae contain taste buds situated near the middle of the papillae. Fungiform papillae have a key role in taste perception.
C. Circumvallate papillae are in the shape of V present in the posterior of the tongue. These papillae contain taste buds by the sides of whorls. They also function in taste.
D. None of the above. This is an inappropriate option as all of the three above mentioned options are the type of papillae out of which only one is not having any taste bud but is the part of papillae.
Hence, the correct answer is option (A).

Note: Taste buds one of the sensory organs present on our tongue allows us to sense, experience, or feel the various tastes namely sour, sweet, bitter, and salty. The purpose of this taste is to help to identify certain toxins, regulate immune responses, or gastrointestinal mobility.