Nasal cavity

Definition

The nasal cavity is a large air-filled space above and behind the nose in the middle of the face, part of the respiratory system that warms, moistens, and filters air entering the body before it reaches the lungs. It also plays a significant role in olfaction (sense of smell) and in forming vocal sounds.

Related terms

Olfactory Epithelium:

A thin layer of tissue within the nasal cavity that contains specialized olfactory receptor cells for detecting smells.

Nasal Septum:

The partition made of bone and cartilage that divides the nasal cavity into two nostrils.

Paranasal Sinuses: Air-filled spaces surrounding the nasal cavity that enhance voice resonance and contribute to warming and moistening the air breathed in