Air Routes

In human Anatomy, the air routes are drains allow the passage of the air since the nose and the mouth towards the Poumon S and the air cells during the ventilation (breathing). They are classified in ways will intra thoracic, extra thoracic, will intra pulmonary, and extra pulmonary. One also speaks about higher respiratory tracts to indicate area ORL, that is to say the respiratory part of the tracts located above the larynx.

The air routes are composed of the following bodies:

  • extrathoracic higher air (VAS) routes

  • lower air routes (VAI) intrathoracic

- Zone of conduction and transition
    • extrapulmonaires: Trachea
    • intrapulmonaires:
      • Bronchus S
- Respiratory Zone
  • Led and alveolar bags, air cells.

Function

The functions of the air routes are not exclusively dedicated for breathing:

  • respiratory Functions (GO and VAI)

    • pulmonary Ventilation (air conduction and resistance to the passage of air etc.).
    • Defense (mechanical factors, normal flora etc.).
    • Air conditioning inspired.

  • nonrespiratory Fonctions of GO

    • Défense
    • Déglutition
    • Phonation
    • Offaction, taste

  • nonrespiratory Functions of the VAI

    • Defense

Anatomy

Bronchi stock

The bronchi stocks right-hand side and left do not have the same angle. The bronchus right stock is closer to the vertical. They are two divisions of the trachea. Each one penetrates in a lung on the level of the pulmonary Hile.
  • the accidental inhalations of foreign bodies are much more frequent on the right than on the left.
The interior of the air routes is covered with a mucous membrane. The cells of this one produce a mucus which is pushed back to the top permanently by microcils (like a travelator). The nicotinism deteriorates the function of these lashes, which explains the chronic cough of the smokers who have only this means for " nettoyer" their bronchi.

Physiology

The smooth muscles surrounding the intrathoracic air routes are controlled by the autonomous nervous system (sympatic and parasympatic)

See too

Random links:District of Lesparre-Medoc | Alfred Rossel | Sebastien Martel | Tammam Salam | Coupe de France of football 1971-1972 | SAVON