In fact, this body - Man, that is, there are two nasal cavities.They are separated by the nasal septum.In front of each opening of the nostrils, and the rear is associated with the particular hole nasopharynx.However, it turned out that these two departments were combined in a speech as "nasal cavity".
its structure is more complex than it seems ignorant man.The walls of the nasal cavity, the bottom and the roof cavity through hard bone, cartilage and connective tissue of high density.It is because of the structural features of the cavity during inspiration subsides.
Each nasal cavity is divided into two parts: the vestibule - expanded area directly behind the nostrils, breathing cavity - the narrowed portion, is located just outside the vestibule.The epidermis, which lines the inside of the cavity, contains many hair follicles, and even sweat and sebaceous glands.What exactly is lined with a nasal cavity?Its functions - purification, humidity and air temperature, so it is so richly studded and blood vessels.The hairs can hold larger particles in the inhaled air.
the eve of the stratified squamous epithelium refers to neorogovevayuschy type, then it becomes a multi-row cylindrical ciliated, there begin to appear goblet cells.It becomes part of the epithelium of the mucous lining of the nasal breathing cavity.
lamina propria are adherent to the periosteum or perichondrium, depending on whether the cover mucous bone or cartilage.The basement membrane, which separates the respiratory epithelium from the lamina propria, much thicker than most other types of epithelium.
epithelial surface is moistened by mucus, which produces goblet cells and glands of the lamina propria.The day before 500ml of mucus is produced.The latter is mixed with the particles of dirt and dust, which are glued to it, and thanks to the cilia moving mouth.Cleansing the nasal cavity depends on the state of the cilia, if they suffered from an illness or injury, this process can be severely impaired.
In some places near the threshold of lymph follicles found performing immune function.In the lamina propria of the nose a lot of plasma cells and lymphocytes, sometimes come and granular leukocytes.They "cherish frontiers" of the body, protecting us from intruders, because the nasal cavity is often the gateway to infections.However
cavity "works" not only with the air in the upper part of the walls and roof of the rear portion of each field are special cells which constitute the olfactory organ.
There are two olfactory area, one in each of the nasal cavity.Mucous it forms a special authority by which we are able to perceive odors.The peculiarity of the body senses that the body there neurons located on the surface that makes them truly vulnerable.Therefore, nasal trauma or chronic diseases a person can lose the sense of smell.Approximately one percent, we lose the sense of smell for each year of life, which is why the elderly so often violated is an important feeling.
along the side plates of each cavity are three bony plates that are one on one, like little shelves.They are slightly curved downward, and therefore are called turbinates.
associated with the nasal cavity and sinuses (sinusitis), which are located in bone cavities.The largest is in the maxillary sinus smaller - in the frontal, ethmoid and sphenoid.They are filled with mucus and pus sometimes for sinusitis.In this case, prescribers that cause blood vessels to narrow and increasing the permeability of the sinuses.
nasal cavity are more complicated, because it has to protect us, to prepare for light and air to carry the sense of smell.
