• tubes
  • In mediastinal emphysema the air bubbles usually pass along the outside of blood vessels and the respiratory tubes (bronchi) until they reach the mediastinal cavity. (britannica.com)
  • From the bronchi, the dividing tubes become progressively smaller with an estimated 20 to 23 divisions before ending at an alveolus[citation needed]. (wikipedia.org)
  • chest
  • If your cough and chest tightness last for several weeks or months, your bronchi may be taking a heck of a long time to heal or it could be signaling another problem, like asthma or pneumonia . (healthblurbs.com)
  • Function
  • MAIN FUNCTION: to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. (prezi.com)
  • site
  • The ion channels have two main conformations, one where the cargo binding site is inward facing (ATP bound), and one where it is outward facing (ATP free). (wikipedia.org)