Papillae

Papillae are small, raised protrusions on the surface of the tongue. They are responsible for our sense of taste, and they also provide a rough surface to help us break down food while we chew. There are four types of papillae: filiform, fungiform, circumvallate, and foliate.

Types of Papillae

Filiform Papillae

Filiform papillae are the most common type of papillae. They are small and cone-shaped, and they cover most of the surface of the tongue. They do not contain taste buds, but they are important for sensing texture and maintaining grip on food.

Fungiform Papillae

Fungiform papillae are larger than filiform papillae, and they are scattered across the tongue. They are mushroom-shaped and contain taste buds on their upper surface.

Circumvallate Papillae

Circumvallate papillae are the largest type of papillae, but there are only 10-14 of them on most tongues. They are round and surrounded by a trench. These papillae contain taste buds and are responsible for the sensation of bitter tastes.

Foliate Papillae

Foliate papillae are found on the sides of the tongue. They are elongated and look like folds of tissue. These papillae also contain taste buds.

Function of Papillae

The primary function of papillae is to provide a rough surface for the tongue, which helps in the mechanical digestion of food. The papillae that contain taste buds (fungiform, circumvallate, and foliate) are also responsible for the sense of taste. They contain specialized taste receptor cells that can detect different types of tastes, including sweet, sour, bitter, salty, and umami.

See Also

• Taste
• Taste bud
• Tongue

Papillae Resources
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