module 14 study

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  1. Veins
    Blood vessels that carry blood back to the heart
  2. Arteries
    Blood vessels that carry blood away from the heart
  3. Capillaries
    Tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and other cells
  4. What Purpose do lungs serve?
    The lungs oxygenate the blood and allow the blood to get rid of carbon dioxide.
  5. what purpose does the heart serve
    the heart pumps blood through the circulatory system.
  6. how many chambers are there in a human heart? Name them
    four chambers: the right atrium, left atrium, right ventricle, left ventricle.
  7. What is special about a four-chambered heart as compared to a three-chambered heart or a two-chambered heart?
    A four chambered heart separates deoxygenated blood from oxygenated blood.
  8. In what kind of blood vessels does the blood transfer oxygen to the cells and pick up wastes?
  9. When deoxygenated blood is returning to the heart, into what chamber does it enter t he heart?
    the right atrium.
  10. after entering the heart, the deoxgenated is then transferred to a second chamber what chamber is that?
    right ventricle.
  11. when deoxygenated blood leaves the heart where does it go?
  12. when oxygenated blood comes into the heart, what chamber does it fill?
    left atrium.
  13. Once the oxygenated blood is back in the heart, it is then transferred to another chamber. what chamber is that?
    left ventricle.
  14. when oxygenated blood leaves the heart, through what artery does it travel first.?
  15. Most veins carry what kind of blood (oxygenated or deoxygenated)? Are there exceptions to this general rule of thumb?
    most vains carry deoxygenated blood there are exceptions
  16. Name the three types of blood cells and their main job in the blood.
    The red blood cells carry oxygen to the other cells of the body. the white blood cells fight disease-causing organisms, and the blood platelets aid the coagulation process when a blood vessel is injured.
  17. what makes up more than half of your blood?
  18. what is hemoglobin and where is it found?
    Hemoglobin is a protein that carries oxygen. it is found in the red blood cells.
  19. where are blood cells produced?
    bone marrow.
  20. what are alveoli? What happens in the alveoli?
    Alvoeli are small sacks at the end of tiny bronchial tubes. Oxygenation of blood takes place in them. the blood also gives up waste products there.
  21. What kind of blood vessels surround the alvoeli?
    Capillaries surround the alveoli.
  22. where are bronchial tubes found and what travels in them?
    bronchial tubes are in the lungs. Air travels through them.
  23. When we inhale, air travels through the following parts of the respiratory system:
    pharynx, nasal, cavity, trachea, larynx, alveoli, bronchial tubes

    List these parts in the order in which inhaled air passes through them.
    nasal cavity, pharynx, larynx, trachea, bronchial tubes, alveoli.
  24. Which of the parts listed in the problem above contains the vocal cords?
  25. what controls the volume of the sound produced by the vocal cords? What controls pitch of the sound produced?
    The amount of air that passes over the vocal cords controls the volume of the sound, and the tightness of the vocal cords determines the pitch.
  26. A sample of fluid is taken from a tube within plant. If it is mostly water, which was it taken from: a xylem or phloem tube?
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module 14 study
2016-12-28 18:34:32

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