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Respiratory System (definitions of lung capacity terminology (internal and…

- - - - refers to the process of respiration (or breathing) where gases are exchanged between the lungs and the 'external' environment.
- - - - The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe
        
        Inhalation and Exhalation Are Pulmonary Ventilation—That's Breathing. ...
        
        External Respiration Exchanges Gases Between the Lungs and the Bloodstream. ...
        
        Internal Respiration Exchanges Gases Between the Bloodstream and Body Tissues.
- - - - The right lung has three lobes because it is slightly larger than the left lung. The left lung is smaller because it must share space on the left part...
        
        The lungs are a pair of spongy, air-filled organs located on either side of the chest . The trachea conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches , finally becoming microscopic
- - - - Inhalation and Exhalation Are Pulmonary VentilationThat's Breathing.
      - External Respiration Exchanges Gases Between the Lungs and the Bloodstream.
      - Internal Respiration Exchanges Gases Between the Bloodstream and Body Tissues
      - The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs. There, in very small air sacs called alveoli, oxygen is brought into the bloodstream and carbon dioxide is pushed from the blood out into the air.
- - - - Structurally similar to the trachea, the two primary bronchi are located inside the lungs. ... Because of this, foreign objects breathed into the lungs often end up in the right bronchus. The bronchi are lined with the same type of mucus that lines the rest of the respiratory tract.
        
        The point where the trachea divides into the bronchi is called the carina. The right main bronchus is wider, shorter than the left main bronchus, which is thinner and longer. The right main bronchus subdivides into three lobar bronchi, while the left main bronchus divides into two.