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5 Written questions

5 Matching questions

  1. network
  2. varicose veins
  3. cyclosis
  4. cardiac cycle: 2 phases
  5. rate is regulated by...
  1. a 1. vagus nerve (slows down heart rate)
    2. cardio accelerator (speeds up heart rate)
    3. horomones (epinephrine increases h.r.)
    4. emotions, coffee/tea, body temp.
  2. b - cytoplasmic streaming
    - materials moving in cell cytoplasm
  3. c (blood vessels) vascular system
  4. d - 'knotted' appearance
    - veins swell because valves wont close properly and sections get overfilled
  5. e diastolic and systolic

5 Multiple choice questions

  1. - carries blood away from heart
    - majority carries oxygenated blood to body cells
    - smooth muscle causes to be thicker
    - only aortic and pulmonary arteries have valves
  2. -blood is not always contained in tubes
    -open ended vessels
    -fluid directly bathes cells
  3. something to force fluid throughout the organism
  4. the pressure during ventricular systole
  5. relaxation phase (DUP)
    - ventricles are filling with blood
    - AV valves open
    - SL valves closed

5 True/False questions

  1. closed system-blood is always confined in tubes
    -blood is separate from interstitial fluid that directly bathes the tissues


  2. Circulatory systemfacilitates (helps) the exchange of materials
    -provides an internal transport system that brings substances and gases close to the cells for diffusion


  3. fluidwhat materials are transported or dissolved in


  4. Electrocardiograma tough, protective membrane that covers the heart


  5. protists- do not have a circulatory system
    - freshwater
    - direct contact with environment
    - diffusion and active transport brings materials in