Papillae

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Papillae

Papillae (pronunciation: /pəˈpɪli/) are small, nipple-like structures present on various parts of the human body such as the tongue, eyes, and skin.

Etymology

The term 'Papillae' is derived from the Latin word 'papilla', which means 'nipple'. It was first used in the 17th century to describe the small, nipple-like protrusions found on various parts of the body.

Types of Papillae

There are several types of papillae, each with its own unique structure and function. These include:

  • Fungiform papillae: These are mushroom-shaped and found on the surface of the tongue. They contain taste buds and help in detecting the five elements of taste perception: salty, sour, bitter, sweet, and umami.
  • Filiform papillae: These are thin, long papillae that do not contain taste buds. They are the most numerous on the tongue and provide its rough texture, aiding in the manipulation of food.
  • Circumvallate papillae: These are large papillae situated at the back of the tongue. They contain taste buds and are involved in the sensation of taste.
  • Foliate papillae: These are ridges and grooves towards the back of the tongue found on the sides. They also contain taste buds.
  • Conical papillae: These are found in the upper part of the small intestine, particularly in the duodenum. They help increase the surface area for absorption.

Related Terms

  • Taste buds: These are the sensory organs that are housed in the papillae of the tongue and are responsible for the sensation of taste.
  • Tongue: This is the primary organ that houses the papillae. It is involved in taste perception, speech, and food manipulation.
  • Duodenum: This is the first part of the small intestine where conical papillae are found.

External links

Esculaap.svg

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