Which of the following papillae are located near the back of the tongue?

Correct option is C

Sol. Circumvallate papillae are large, dome-shaped structures located at the back of the tongue, forming a V-shaped row just in front of the terminal sulcus. They contain a high concentration of taste buds, primarily responsible for detecting bitter tastes. These papillae are surrounded by deep trenches that house taste receptors.
Explanation of each option:
· (a) Filiform – Incorrect. Filiform papillae are the most numerous and are found across the tongue’s surface. They provide texture and aid in food manipulation but lack taste buds.
· (b) Fungiform – Incorrect. Fungiform papillae are scattered across the tongue, mainly at the tip and sides. They contain taste buds but are not concentrated at the back of the tongue.
· (c) Circumvallate – Correct answer. These papillae are found at the back of the tongue in a V-shaped pattern and contain numerous taste buds involved in detecting bitter flavors.
· (d) Foliate – Incorrect. Foliate papillae are located on the lateral sides of the tongue and are involved in taste sensation, particularly in young individuals.