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Nasal Cavity Interior
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Eustachian tube opening

Eustachian tubes connect the middle ears to the back of your throat, which help drain fluid and equalize the air pressure inside your ears.

Respiratory region

The respiratory region functions to humidify, warm, filter, protect, and eliminate debris. Covered in respiratory epithelium and mucous cells, this is the most substantial part of the nasal cavity.

(Nasal) Vestibule

The nasal vestibule is the first area encountered as you move posteriorly through the anterior nares, also known as the nostrils or external nasal valve.

Inferior nasal concha

The horizontal plate of the palatine bone

Superior nasal concha

The body of the sphenoid bone

Olfactory nerves

The olfactory nerve transmits signals from the nasal cavity to the brain to give the sense of olfaction.

Nasal cavity

The role of the nasal cavity is to humidify and warm the inspired air, and filter the air with the help of columnar epithiial tissue lining the nasal cavity before it reaches the lower airways.

Frontal sinus

A type of paranasal sinus (a hollow space in the bones around the nose).

Olfactory bulb

A rounded mass of tissue that contains several types of nerve cells that are involved in the sense of smell.