companydirectorylist.com  Global Business Directories and Company Directories
Search Business,Company,Industry :


Country Lists
USA Company Directories
Canada Business Lists
Australia Business Directories
France Company Lists
Italy Company Lists
Spain Company Directories
Switzerland Business Lists
Austria Company Directories
Belgium Business Directories
Hong Kong Company Lists
China Business Lists
Taiwan Company Lists
United Arab Emirates Company Directories


Industry Catalogs
USA Industry Directories














  • Respiratory system - Wikipedia
    The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants
  • Human respiratory system | Description, Parts, Function, Facts . . .
    Human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide The major organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, lungs, and diaphragm
  • Introduction to Diagnosis of Lung Disorders - The Merck Manuals
    The respiratory system starts at the nose and mouth and continues through the airways and the lungs Air enters the respiratory system through the nose and mouth and passes down the throat (pharynx) and through the voice box, or larynx The entrance to the larynx is covered by a small flap of tissue (epiglottis) that automatically closes during swallowing, thus preventing food or drink from
  • Respiratory System Organs and Their Functions - New Health Advisor
    The respiratory system plays a vital role in the body, by providing your cells with much needed oxygen, as well as excreting carbon dioxide, which can be deadly if allowed to accumulate Major parts of the system include the airways, the lungs, and the muscles of respiration
  • How the Lungs Work - The Respiratory System | NHLBI, NIH
    Learn how the respiratory system works and what happens when you breathe in and out
  • Interactive Guide to the Respiratory System | Innerbody
    The respiratory system provides oxygen to the body's cells while removing carbon dioxide, a waste product that can be lethal if allowed to accumulate There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration
  • Respiratory system anatomy and physiology | Khan Academy
    With every inhale, air rushes through your windpipe to your lungs After 20 to 30 branch points, oxygen diffuses into the liquid around the alveoli and slips into your blood Carbon dioxide travels from the blood to the air and leaves the body when you exhale Learn more about the respiratory system in these videos!




Business Directories,Company Directories
Business Directories,Company Directories copyright ©2005-2012 
disclaimer