Respiratory system

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Respiratory system

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

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