Organ: Lung


advertisement
Lung: Pair of organs related to breathing and gas exchange
Introduction: The most important job that the lungs perform is to provide the body with oxygen and to remove carbon dioxide. This process is called gas exchange, and the normal anatomy of the lungs serves this purpose well. The lungs contain 300 million alveoli whose ultrathin walls form the gas exchange surface. Enmeshed in the wall of each of these air sacs is a network of tiny blood vessels, the capillaries, which bring blood to the gas exchange surface. When a person inhales, air flows from the nose and mouth through large and small airways into the alveoli. Oxygen from this air then passes through the thin walls of the inflated alveoli and is taken up by the red blood cells for delivery to the rest of the body. At the same time, carbon dioxide leaves the blood and passes through the alveolar walls into the alveoli. During exhalation, the lung pushes the used air out of the alveoli and through the air passages until it escapes from the nose or mouth. 1

Our lungs are essential for breathing and for getting oxygen into the bloodstream and the cells of our body. During a normal day, we breathe nearly 25,000 times, and inhale more than 10,000 liters of air. The air we inhale is mostly oxygen and nitrogen, but it also includes floating bacteria, viruses, tobacco smoke, car exhaust, and other air pollutants. Lung disease is not only a killer; most lung disease is chronic and debilitating. More than 30 million Americans are now living with chronic lung disease. 2

The lungs, a pair of sponge-like, cone-shaped organs, are part of the respiratory system. The right lung has three sections, called lobes; it is a little larger than the left lung, which has two lobes. When we breathe in, the lungs take in oxygen, which our cells need to live and carry out their normal functions. When we breathe out, the lungs get rid of carbon dioxide, which is a waste product of the body's cells.3


Condition count: 73 ; see list below.
Organ subtypes: bronchi (3), bronchioles (0), alveoli (1)
Organ types: Respiratory system (99)
Related organs: diaphragm (2), trachea (5), throat (44), intercostal muscles (0), pulmonary artery (0)
Main condition: Lung conditions
Organs: all organs

Diseases list: The following list of medical conditions have 'Lung' or similar listed as an affected body part in our database:

A

  • Acute Bronchitis ... lung, bronchi
  • Adhesions ... lungs
  • Adult respiratory distress syndrome ... lung
  • Allergic bronchopulmonary aspergillosis ... lung
  • Alveolar Hydatid Disease ... lungs
  • Anthrax ... lung
  • Asbestosis ... lungs
  • Asthma ... lung

    B

  • Bronchiectasis ... lung
  • Bronchiolitis ... lung
  • Bronchitis ... bronchi, lungs
  • Bronchopulmonary dysplasia ... lung

    C

  • Chlamydia pneumoniae ... lung
  • Chronic Bronchitis ... lung
  • Chronic lower respiratory diseases ... lungs
  • Chronic Obstructive Pulmonary Disease ... lung
  • Common cold ... lungs
  • Cystic Fibrosis ... lung

    D

  • Diphtheria ... lung
  • Drowning ... lung

    E

  • Emphysema ... lung, alveoli

    F

  • Familial emphysema ... lung
  • Flu ... lung

    G

  • Gaucher Disease ... lungs
  • Goodpasture syndrome ... lung

    H

  • Hemothorax ... lungs, pleura
  • High altitude pulmonary edema ... lung
  • Histoplasmosis ... lungs

    I

  • Idiopathic Pulmonary Fibrosis ... lung
  • Interstitial lung disease ... lung

    K

  • Kaposi's Sarcoma ... lungs

    L

  • Lung abscess ... lung
  • Lung cancer ... lung
  • Lung conditions ... lung
  • Lymphangioleiomyomatosis ... lung

    M

  • Mesothelioma ... lung, lungs, pleura
  • Mountain sickness ... lung

    N

  • Neonatal Respiratory Distress Syndrome ... lung

    P

  • Parainfluenza ... lung
  • Pleural cancer ... lungs, pleura
  • Pleural effusion ... lung
  • Pleurisy ... lung
  • Pneumococcal pneumonia ... lung
  • Pneumoconiosis ... lung
  • Pneumonia ... lung
  • Pneumonic plague ... lungs
  • Pneumonitis ... lung
  • Pneumothorax ... lung
  • Primary pulmonary hypertension ... lung
  • Psittacosis ... lungs
  • Pulmonary Anthrax ... lung
  • Pulmonary edema ... lung
  • Pulmonary embolism ... lung
  • Pulmonary fibrosis ... lung
  • Pulmonary hypertension ... lung

    Q

  • Q fever ... lungs

    R

  • Relapsing Polychondritis ... bronchi
  • Respiratory conditions ... lung
  • Respiratory diphtheria ... lung
  • Respiratory failure ... lung
  • Respiratory infections ... lung
  • Respiratory syncytial virus ... lung

    S

  • Sarcoidosis ... lung
  • SARS ... lungs
  • Silicosis ... lung
  • Smoking ... lungs
  • Stridor ... lung
  • Suffocation ... lung

    T

  • Tachypnea ... lungs
  • Tapeworms ... lungs
  • Tuberculosis ... lung

    W

  • Wegener's granulomatosis ... lungs
  • Wheezing ... lung

    Footnotes:
    1. excerpt from COPD: What Goes Wrong?: NHLBI
    2. excerpt from Lung Disease: NWHIC
    3. excerpt from What You Need To Know About Lung Cancer: NCI

    Medical Tools & Articles:


    Next articles:

    Medical Articles:
  •  
     
    CureResearch.comTM Copyright © 2010 Health Grades, Inc. All rights reserved.
    Home | Contents | Search | Site Map | Feedback | Contact Us | Terms of Use | Privacy Policy | About Us | Advertise