Lingual papilla

Lingual Papilla

The Lingual Papilla are the small, nipple-like structures on the upper surface of the tongue that give it its characteristic rough texture. They are involved in several functions, including taste, touch, and temperature sensation.

Types of Lingual Papilla

There are four types of lingual papillae, each with a unique structure and function:

• Fungiform Papillae: These are mushroom-shaped projections found on the tip and sides of the tongue. They contain taste buds and are involved in the perception of taste.

• Filiform Papillae: These are the most numerous type of papillae. They are cone-shaped and do not contain taste buds. Their main function is to provide grip for food and aid in speech.

• Foliate Papillae: These are ridges and grooves towards the posterior part of the tongue. They contain taste buds and are involved in the perception of taste.

• Circumvallate Papillae: These are large papillae located at the back of the tongue. They contain taste buds and are involved in the perception of taste.

Function of Lingual Papilla

The primary function of the lingual papillae is to increase the tongue's surface area and provide a rough texture that aids in the manipulation of food. The papillae that contain taste buds (fungiform, foliate, and circumvallate) are also involved in the perception of taste.

Clinical Significance

Changes in the appearance of the lingual papillae can be a sign of various medical conditions. For example, a smooth, glossy tongue with atrophied papillae can be a sign of vitamin B12 deficiency. On the other hand, an overgrowth of the papillae resulting in a hairy appearance of the tongue can be a sign of poor oral hygiene, smoking, or other conditions.

See Also

• Taste bud
• Tongue
• Oral anatomy