The human body carries out a lot of the processes important for activity. Breath belongs to such processes. Several bodies among which - a nose take part in its realization.
What bodies participate in breath
Several parts of an organism belong to respiratory organs. The respiratory way begins with a nasal cavity and an external nose, and then the throat, a throat, a trachea, bronchial tubes and lungs continue to carry out process. All these bodies, except lungs, are pneumatic ways. On these ways air also comes to lungs. A pulmonary parenchyma together with lungs form a respiratory part which carries out exchange of gases between air and blood.
Structure of an external nose
The external nose has the form of a trihedral pyramid. Pair nasal bones make its bone part. On the average line of a nose these bones connect, forming thereby a nose back. Frontal shoots of the upper jaw are located lateralno from a nose. These shoots become the side surfaces of an external nose. In the bottom of a nose of a bone form pear-shaped openings. At edges of openings it is possible to observe cartilaginous formations: upper edge of a quadrangular cartilage and pair, lateral, additional and krylny cartilages. The nasal shoot of a frontal bone forms a nose bridge. Each education is covered with a skin layer. It is possible to tell that the nose consists of two nostrils, wings of a nose, a partition of a nose and bottom edge of a pear-shaped opening.
Nasal cavity
Skin covers not only an external part of a nose, but also its interior. Internal part of a nose is called a nasal cavity. It is divided into two half by a partition. At the bottom of a cavity there are horizontal shoots of the upper jaw and palatal bone. Besides, these shoots are a basis of a hard palate.
Respiratory area of a nose
The respiratory area of a nose represents a mucous membrane. This cover proceeds in okolonosny bosoms. The mucous membrane is covered with cavernous cavernous fabric and mucous glands. Mucous glands usually are located in the lower part of nasal sinks. If cavernous bodies are filled with blood, then thickness of a mucous membrane can reach up to 4-5 millimeters. The sink can bulk up rather strongly. Sometimes it even completely closes the nasal course. On a mucous membrane of a nose there is a vibrating epithelium. Among its cages the sekretorny cages reminding the form glasses are located.
Congenital anomalies of bodies of development of breath
Violation of development of a nose meets quite seldom. Full or partial violation of development, surplus of growth of parts of a nose, the wrong arrangement of parts of a nose concern them. In the world such defects of a nose as splitting of a nose, a double nose, fistulas or cysts of a nose, malformations of nasal sinks and other violations met.