BIO NOTES CH 33

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Author:
Danielvu28
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108197
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BIO NOTES CH 33
Updated:
2011-10-11 19:21:08
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NOTES BIO
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Circulatory and respiratory system
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  1. What is a function of the circulatory system?
    REMOVING WASTES FROM TISSUES
  2. What is the direction of flow on the right side of the heart?
    VENA CAVA->RIGHT ATRIUM->RIGHT VENTRICLE->PULMONARY ARTERY
  3. What structure prevents the mixing of oxygen rich and oxygen poor blood?
    SEPTUM
  4. How does tobacco affect the body?
    IT CAUSES AN INCREASE IN THE HEART RATE AND BLOOD PRESSURE
  5. How is it that simple organisms (such as jellyfish & flatworms) don’t need a circulatory system?
    THEIR CELLS ARE IN DIRECT CONTACT WITH THE ENVIRONMENT.
  6. What is a typical flow pattern of blood?
    Arteries -> Capillaries->Veins
  7. How do the walls of arteries and capillaries compare?
    CAPILLARY WALLS ARE THINNER (super thin)
  8. Which type of blood vessel carries blood away from the heart?
    ARTERIES
  9. How does blood pressure in the arteries and veins compare?
    BLOOD PRESSURE DROPS FROM THE ARTERIES TO THE VEINS
  10. What is the event called when blood supply is interrupted causing sudden death of brain cells?
    A STROKE
  11. Which blood vessels supply the heart muscle with a constant supply of oxygen?
    CORONARY ARTERIES
  12. Which are the most numerous blood cells in the body?
    RED
  13. The thymus organ produces which type of cells?
    T LYMPHOCYTES
  14. Which organ removes old and damaged blood cells?
    SPLEEN
  15. What type of molecule is cholesterol?
    FAT/LIPID
  16. Which organ manufactures cholesterol?
    LIVER
  17. How is carbon dioxide transported in the blood?
    • 3 ways
    • -It enters red blood cells and forms carbonic acid.
    • -It dissolves in the blood plasma
    • -It binds to hemoglobin and proteins in plasma
  18. How does tobacco affect the body?
    IT BLOCKS HEMAGLOBIN FROM BINDING TO OXYGEN THUS AFFECTING GAS EXCHANGE IN THE LUNGS.
  19. Which gas (found in cigarette smoke) blocks the transport of oxygen by hemoglobin?
    CARBON MONOXIDE
  20. What is a function of the lymphatic system?
    TRANSPORT OF FAT-SOLUBLE VITAMINS TO THE BLOOD
  21. What causes swollen lymph glands?
    AN INFECTION (usually viral/bacterial)
  22. How is inhalation achieved?
    When the rib cage raises, a decrease in air pressure in the chest cavity causes air to rush into the lungs.
  23. Which structure serves as a passageway for both air and food?
    PHARYNX
  24. If the epiglottis fails, what could happen?
    THE PERSON COULD CHOKE
  25. Which muscle contracts allowing you to take a deep breath (ex. as you begin driving through the tunnel)?
    THE DIAPHRAGM
  26. How does tobacco affect the body?
    It paralyzes the cilia in the trachea allowing inhaled particles to enter the lungs
  27. What causes chronic bronchitis?
    The bronchi become inflamed and clogged with mucus.
  28. STUDY AQUISTA POWER NOTES.
    AQUISTA JUSTICE.

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