Bio quiz

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Bio quiz
2010-04-19 23:48:50

respiration and gas exchange
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  1. Blood Pressure
    Force exerted by blood against vessel walls

  2. Erythrocyte
    A blood cell that contains hemoglobin, which transports oxygen; also called a red blood cell
  3. Leukocyte
    A blood cell that functions in fighting infections; also called a white blood cell.
  4. Lymph
    The colorless fluid, derived from interstitial fluid, in the lymphatic system of vertebrates.
  5. Plasma
    The liquid matrix of blood in which cells are suspended.
  6. Platelet
    A pinched-off cytoplasmic fragment of specialezed bone marrow cell. Platelets circulate in the blood and are important in blood clotting.
  7. Alveoli
    One of the dead-end, multilobed air sacs where gas exchange occurs in a mammalian lung.
  8. Bronchi
    One of a pair of breathing tubes that branch from the trachea into the lungs.
  9. Bronchioles
    A fine branch of the bronchi that transports air to alveoli.
  10. Countercurrent Exchange
    The exchange of a substance or heat between two fluids flowing in opposite directions. For example, blood in a fish gill flows in the opposite direction of water passing over the gill, maximizing diffusion of oxygen into and carbon dioxide out of the blood.
  11. Partial Pressure
    the pressure exerted by a particular gas in a mixture of gases (for instance, the pressure exerted by oxygen in the air)
  12. Tidal Volume
    The volume of air a mammal inhales and exhales with each breath
  13. Tracheal System
    In insects, a system of branched, air-filled tubes that extends throughout the body and carries oxygen directly to cells
  14. Ventilation
    The flow of air or water over a respiratory surface
  15. Vital copacity
    Max tidal volume
  16. Residual volume
    Air that remains in lungs after a forced exhalation
  17. Systolic pressure
    Blood pressure in arteries during contraction of ventricles
  18. Diastolic pressure
    Blood pressure in arteries during relaxation of ventricles

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