Respiratory system
The respiratory system , systema respiratorium, ensures gas exchange in the body, necessary for the maintenance of life.
Gas exchange occurs between atmospheric air and blood in the lungs, capable of diffusing gases through the thin wall of the alveoli of the lung, alveoli pulmonis. Diffusion of gases takes place in two directions - from the alveoli to the capillaries and from the capillaries to the alveoli. During this process, blood through the lungs receives atmospheric oxygen and gives off carbon dioxide, formed as a result of tissue metabolism.
Thus, the respiratory system functions as a support system and a system of isolation, which is a necessary condition for maintaining the constancy of the internal environment of the body.
The composition of the respiratory system includes: the nasal cavity, nasal cavitas, pharynx, pharynx, larynx, larynx, trachea, trachea, bronchi, bronchi, and their branching, and lungs, pulmones.
Another important function of the respiratory system is voice formation, for which there is a voice device, glottis, the main organ of which is the larynx, where a vibration modulated by the vocal cords produces a sound modulated by the resonating organs (upper respiratory tract, paranasal sinuses and oral cavity).
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