Tragus

Tragus The tragus is a small pointed eminence of the external ear, situated in front of the concha. It is a small cartilaginous projection that partially covers the entrance to the ear canal. The name "tragus" is derived from the Greek word "tragos," meaning "goat," due to the tuft of hair that is often found on the tragus, resembling a goat's beard.

Anatomy

The tragus is composed of a thin layer of cartilage covered by skin. It is located anterior to the external auditory meatus and plays a role in directing sound waves into the ear canal. The tragus is also involved in the protection of the ear canal from foreign objects and debris.

Function

The primary function of the tragus is to assist in the collection and direction of sound waves into the ear canal. It helps to enhance the localization of sound, particularly in the vertical plane. The tragus also serves as a protective barrier, preventing dust, insects, and other small particles from entering the ear canal.

Clinical Significance

The tragus can be involved in various medical conditions and procedures. For example, tragal tenderness is a common symptom in otitis externa, an inflammation of the external ear canal. The tragus is also a common site for piercings, which can sometimes lead to complications such as infections or keloids.

Related Structures

• Antitragus: A small eminence located opposite the tragus, separated by the intertragic notch.
• Helix: The outer rim of the ear.
• Lobule: The soft, fleshy lower part of the ear.

See Also

• Ear
• External ear
• Ear canal
• Otitis externa
• Piercing (body modification)

Related Pages

• Concha (ear)
• External auditory meatus
• Antitragus
• Helix (ear)
• Lobule of the ear
• Otitis externa
• Piercing (body modification)