orrüregünkön

orrüregünkön is the Hungarian term for the nasal cavity. It is a hollow space within the skull, located behind the nose and above the roof of the mouth. This complex anatomical structure plays a crucial role in respiration, olfaction, and the regulation of inhaled air.

The nasal cavity is divided into two passages by the septum, a wall of cartilage and bone. Each passage is lined with a mucous membrane that contains cilia, tiny hair-like structures, and mucus-producing cells. The mucus traps dust, pathogens, and other airborne particles, while the cilia sweep them towards the throat to be swallowed or expelled.

Within the nasal cavity are three bony projections called turbinates, or conchae. These structures increase the surface area of the nasal lining, allowing for more efficient warming, humidifying, and filtering of inhaled air. As air passes over the turbinates, it is brought closer to body temperature and moisture levels before reaching the lungs.

The sense of smell, or olfaction, is also mediated by specialized olfactory receptors located in the upper part of the nasal cavity. When airborne molecules bind to these receptors, they send signals to the brain, allowing us to perceive different odors. Furthermore, the nasal cavity acts as a resonating chamber, contributing to the quality of our voice. Various sinuses, air-filled cavities within the bones of the face and skull, connect to the nasal cavity and also play a role in voice resonance and reducing the weight of the skull.