bio204

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Author:
val0512
ID:
111103
Filename:
bio204
Updated:
2011-11-01 21:20:17
Tags:
BP CIRCULATION
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Description:
BIO204
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  1. Poiseuille's Law explains the effect of three factors on peripheral resistance.
    the smaller the radius of a vessel, the _____the resistance to blood flow
    the smaller the radius of a vessel, the HIGHER the resistance to blood flow
  2. Blood is moved through the vascular system by_________
    C)pressure gradients created by the heart
  3. increases arterial blood pressure

    can be caused by signals from the sympathetic nervous system??
    Vasoconstriction
  4. The maximum pressure developed in a systemic artery
    SYSTOLIC PRESSURE
  5. Friction between the blood and vessel walls CAUSES
    causes peripheral resistance
  6. What adds pressure to the blood in the arteries following ventricular
    systole and helps to maintain arterial blood pressure during ventricular
    diastole?
    elastic recoil
  7. CAUSES increase peripheral resistance?
    increased blood viscosity
  8. The major factors determining blood pressure are
    cardiac output and peripheral resistance
  9. This material typically cannot move through the capillary wall.
    PROTEIN
  10. Which of these pressures forces molecules out of capillaries?
    blood hydrostatic pressure
  11. What pressure pulls water into capillaries?
    B)blood colloid osmotic pressure
  12. The colloid osmotic pressure of the blood is caused by
    the presence of proteins in the plasma
  13. Filtration is greater at the _________end of a capillary that at the venule end.
    ARTERIOLE
  14. WHAT would increase the movement of fluid out of the capillaries
    Increase in blood pressure
  15. Blood flow to a tissue increases if the
    B)level of carbon dioxide in the tissue increases
  16. WHAT factor would increase blood flow to a tissue?
    INCREASED TEMPERATURE
  17. would decrease mean arterial blood pressure?
    dilation of the arterioles
  18. If the blood pressure is elevated, the cardiovascular centers would compensate by
    causing vasodilation
  19. If blood pressure is too low, the cardiovascular control center in the medulla oblongata attempts to compensate by causing
    INCREASED contractility of the myocardial cells
  20. Information about blood pressure is collected and sent to the brain by
    BARORECERPTORS
  21. short term pressure is the driving force for all blood flow through all organs except___?
    lungs
  22. What is the most important dertermiant of resistance?
    VESSEL RADIUS
  23. as viscosity increases ...... resisitance???
  24. increase or decrease
    NOREPINEPHRINE

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