What is the anatomy of the respiratory system?

respiratory system is a body system that maintains the act of breathing and the subsequent replacement of oxygen and carbon dioxide between the lungs and blood vessels that transport these gases to and from the body tissues. As its structure narrowly reflects its function, the anatomy of the respiratory system includes the airways, the path through which the air passes through the nostrils and mouths and into the trachea or trachea; lungs and in mammals of bags that contain known as alveoli that facilitate gas exchange; and the thoracic membrane, muscles under the lungs that allow breathing. The respiratory system ensures that the oxygen, the compound necessary for cell metabolism or the breakdown of energy for the use of cells, achieves tissues that require it.

Starting with holes inhalation, nostrils and mouth, anatomy of the respiratory system includes these holes and cavities inside, which are known together as the upper airways. Once the air enters the nose with nasal substances,It is drawn into the space close to the nose known as the nasal vestibule and continues to the nasal cavity, large space just behind the nose, where the inhalation air is brought to body temperature and filters dust, bacteria and nasal saliva viruses and small hair cells. This air then passes behind a horizontal plate that divides the nasal cavity and mouth, which is known as a hard floor and enters the pharynx or neck, immediately behind the mouth. The air inhaled by the mouth is pulled directly into the pharynx, the bitter part of the upper airway.

The second segment described by the anatomy of the respiratory system is simply referred to as airways or airways. Starting with a larynx or voice box just below the pharynx, the inhaled air travels through the trachea or through the bronchi to Wdene is a fork to form a bronchi, pair of airways for each lung. After entering the bronchi, the air meets other airway subdivizes into bronchiols that resemble bare trees branches.

at the base of each bronchiolE begins with the third segment shown by the anatomy of the respiratory system, the functional units of the lungs known as the alveoli. The broccoli at the ends of the stems, which are bronchioles, are alveoli consists of tinier stems known as alveolar channels and small rounded cavities known as alveolar bags. In the alveolar vaches, the point of the air flow into the lungs of the bed of microscopic blood vessels called the capillaries. It is here that oxygen in the air enters the bloodstream through the process called diffusion, in which the oxygen is replaced by an alveolar membrane with carbon dioxide. That carbon dioxide, a by -product of cellular metabolism is released back to the atmosphere in the exhalation of air.

This whole inhalation process is made possible by the main muscle included in the anatomy of the respiratory system, the thoracic membrane. Circular muscles in the shape of a parachute found just below the lungs and filling the space contained in the bottom of the rib cage, the membrane facilitates inhalation by creating a vacuum whenDownloads. At the same time, it attracts air into the lungs with the help of external intercostals, the muscles between each rib that enlarges the rib cage as a whole when they download, allowing the lungs to expand.