A sample of sputum is placed in a sterile container and sent to the laboratory for testing. Sputum may be expectorated (produced by coughing), induced (saline is sprayed in the lungs to induce sputum production), or taken via an endotracheal tube (commonly used on patients on respirators) ...
These movements are essential for the exchange of oxygen and carbon dioxide in the lungs. Inhalation brings fresh air into the respiratory system, while exhalation expels carbon dioxide. Pleura: The pleura consists of two layers – parietal pleura and visceral pleura – surrounding the lungs. The...
通常称鼻、咽、喉为上呼吸道,气管和各级支气管为下呼吸道。肺是由肺实质及肺间质组成,是气体交换的器官。 The respiratory system consists of respiratory tract and lungs. The nose, pharynx and throat are usually called the upper respiratory tra...
呼吸系统由呼吸道和肺组成。通常称鼻、咽、喉为上呼吸道,气管和各级支气管为下呼吸道。肺是由肺实质及肺间质组成,是气体交换的器官。 The respiratory system consists of respiratory tract and lungs. The nose, pharynx and throat are usually called the upper respiratory tract, and the trachea and bronchi...
Throughthe process of breathin end, airreach in oxygen is called inhalation. After the contraction of the muscular diaphragm, the lungs expand, and the air rushes in, resulting in the inflation of the alveoli,. During exhalation the diaphragm moves up in the lungs contract. Thus the alveoli ...
The respiratory system supplies the blood with vital oxygen for all the body's organs. We breathe in when a sheet of muscles across the bottom of the chest cavity (the diaphragm) contracts, pulling air into the lungs, and we breathe out when the diaphragm relaxes. Air enters through the ...
Human respiratory system - Mechanics, Lungs, Airways: Air moves in and out of the lungs in response to differences in pressure. When the air pressure within the alveolar spaces falls below atmospheric pressure, air enters the lungs (inspiration), provide
Your respiratory system has built-in methods to keep harmful things in the air from entering your lungs. Hairs in your nose help filter out large particles. Tiny hairs, called cilia, along your air passages move in a sweeping motion to keep the passages clean. But if you breathe in harmful...
Phonation is the creation of sound by structures in the upper respiratory tract of the respiratory system. During exhalation, air passes from the lungs through the larynx, or “voice box.” When we speak, muscles in the larynx move the arytenoid cartilages. The arytenoid cartilages push the...
The structures of the lower respiratory system include the trachea, through the lungs and diaphragm. These structures are responsible for gas exchange and external respiration.