Frontonasal duct

Frontonasal duct is a term used in anatomy to refer to the duct that connects the frontal sinus to the nasal cavity. The term is derived from the Latin words "fronto," meaning forehead, and "nasal," meaning nose.

Etymology

The term "frontonasal duct" is derived from the Latin words "fronto," meaning forehead, and "nasal," meaning nose. This is reflective of the duct's location and function, as it connects the frontal sinus, located in the forehead, to the nasal cavity.

Anatomy

The frontonasal duct is a small passage that connects the frontal sinus to the nasal cavity. It is part of the paranasal sinuses, a group of air-filled spaces that surround the nasal cavity. The frontonasal duct allows for the drainage of mucus from the frontal sinus into the nasal cavity.

Function

The primary function of the frontonasal duct is to allow for the drainage of mucus from the frontal sinus into the nasal cavity. This is an important part of the body's respiratory system, as it helps to keep the nasal passages clear and moist, and aids in the filtration and humidification of air as it is inhaled.

Related Terms

• Frontal sinus: One of the four pairs of paranasal sinuses that are situated behind the brow ridge.
• Nasal cavity: The large, air-filled space above and behind the nose in the middle of the face.
• Paranasal sinuses: A group of four paired air-filled spaces that surround the nasal cavity.

See Also

• Sinusitis: Inflammation or swelling of the tissue lining the sinuses.
• Nasal polyp: Noncancerous growths in the lining of the nasal cavity or sinuses.

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