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Respiratory system
 

Respiratory system

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    Respiratory system Respiratory system Presentation Transcript

    • Respiratory System
    • Pharynx
      • A tube like passageway for both food and air.
      • At the end of pharynx there is a flap of tissue called the epiglottis.
    • Larynx
      • The larynx is an airway to which your vocal cords are attached.
      • The epiglottis covers the larynx. Without this action your food would go straight to your larynx rather then your esophagus.
      • When you speak muscles tighten or loosen your vocal cords. Sound is produced when air moves past, causing them to vibrate.
    • Trachea
      • Located below the larynx.
      • A cartilage-reinforced tube that carries air to the bronchi.
      • C-shaped rings of cartilage keep the trachea open and prevent it from collapsing.
      • Lined with mucous membranes to trap dust, bacteria, and pollen.
    • Bronchi
      • The bronchi are two short tubes that branch off the trachea and carry air into the lungs.
      • Take up most space in your chest cavity.
      • Smaller tubes are called bronchioles.
    • Alveoli
      • Located at the end of each bronchiole.
      • Clusters of tiny, thin walled sacs.
      • Lungs are masses of alveoli.
      • Capillaries surround the alveoli.
    • Diaphragm
      • Your diaphragm is a muscle beneath your lungs that helps move air in and out of your body.
      • It contracts and relaxes when you breathe. Your lungs expand as air rushes into them.
      • When you exhale your diaphragm relaxes and moves up and returns to its normal dome shape
    • Chronic Bronchitis
      • Bronchitis is a disease where bronchial tubes are irritated and too much mucus is being produced.
      • Bronchitis can last for a long time.
      • Mainly bronchitis comes from smoking.
    • Emphysema
      • A disease in which the alveoli in the lungs lose their ability to expand and contract. Cells in the bronchi usually become inflamed
      • Bronchitis eventually turns into emphysema.
    • Lung Cancer
      • Inhaling the tar from the cigarette change into carcinogens which trigger lung cancer by causing uncontrolled growth of cells in a lung tissue.
      • Known as the leading cause of cancer deaths in men and women.
    • Asthma
      • A disorder of the lungs in which there may be shortness of breath, wheezing, or coughing.
      • When asthma attacks occur the bronchial tubes contract quickly.
      • Asthma is known as an allergic reaction
    •