Question

What is found over the surface of the tongue, on which are the taste buds located, that supply the sensations of sour, salty, bitter, and sweet?

1) Papillae
2) Epiglottis
3) Uvula
4) Tonsils

Answer 1

Taste buds, which provide the sensations of different tastes, are located on small bumps on the tongue called papillae. There are four types of papillae with specialized gustatory receptors for detecting sour, salty, bitter, sweet, and umami tastes.

Step-by-step explanation:

The small bumps found over the surface of the tongue, on which the taste buds are located, are called papillae. Taste buds, which supply the sensations of sour, salty, bitter, sweet, and umami, are nestled within these papillae. There are four types of papillae: circumvallate, foliate, filiform, and fungiform. Each type of papilla houses gustatory receptor cells that respond to different chemical stimuli dissolved in the saliva, activating sensory neurons that communicate with the brain to give us the perception of taste. The chemical receptors present within the taste buds are specialized for the five primary tastes humans can detect.