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5 Written questions

5 Matching questions

  1. rate is regulated by...
  2. open system
  3. earthworm
  4. murmurs
  5. blood pressure
  1. a main force driving blood from heart to capillaries
    - the force the blood exerts against the walls of blood vessels
  2. b valve doesn't close all the way
    - wushing sound in heart beat
    - can be born with one
    - watch bicuspid valve more closely because can result in a "large heart"
    - replace valve with sheep, pig, artificial, or organ donor valve
    - back flow of blood
    - can be result of untreated strep throat where bacteria attacks valve= Rheumatic fever
  3. c 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.
  4. d - dorsal vessel is along the back
    - 5 aortic arches
    - ventricular vessel is close to ground
    - blood carries nutrients, gases, waste
    -contains hemoglobin (which carries more oxygen)
  5. e -blood is not always contained in tubes
    -open ended vessels
    -fluid directly bathes cells

5 Multiple choice questions

  1. cardio- heart
    vascular- veins/arteries/blood vessles
  2. contract around vein to push blood up
  3. almost no pressure
  4. in septum between atria
    - relays impulses to muscle cells of the ventricles
  5. - 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

5 True/False questions

  1. veins- majority carries deoxygenated blood to the heart (except pulmonary vein)
    - thin walled


  2. pulmonary circuitcarried blood between the heart and the lungs


  3. hydrasomething to force fluid throughout the organism


  4. pumpthe rhythmic stretching/expansion of the arteries caused by pressure of blood during ventricular systole


  5. cardiac cycle: 2 phasesdiastolic and systolic


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