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A&P circulatory system set c

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  • what is it called when the ventricles contract?
    ventricular systole
  • what is it called when the heart contracts?
    systole
  • once filled, what do the ventricles do?
    contract
  • when the heart beats, what contracts first?
    atria
  • the right side of the heart pumps blood where?
    lungs
  • the left side of the heart pumps blood where?
    to the body
  • what is it called when the atria contracts?
    atrial systole
  • the heart acts as how many separate pumps
    2
  • after the blood goes through the 4 pulmonary veins, it passes through this valve into the left ventricle
    biscuspid (L AV) valve
  • what does the closure of the SL valve prevent?
    blood from rushing back into the ventricles
  • once the blood is pumped into the pulmonary artery, where does it go?
    the lungs
  • where does the blood enter the heart?
    the right atrium through the superior and inferior vena cava
  • when the blood is pumped into the pulmonary artery into the lungs what is added or lost ?
    O2 is addes and CO2 is lost
  • the "dub" sound is caused by...
    the closure of the SL valves
  • the right atrium pumps the blood through which valve into the right ventricle?
    tricuspid
  • When the ventricles contract, blood is forced through this valve into the aorta
    aortic SL valve
  • what is it called when the heart relaxes?
    diastole
  • the blood entering the heart is low on what?
    oxygen
  • When the ventricles contract, blood is pumped through this valve into the pulmonary artery
    pulmonary semilunar valve
  • what does atrial systole do?
    forces blood into the ventricles (through AV valces)
  • where does the blood go after it is forced through the arotic SL valve into the aorta.
    it is distributed to the rest of the body.
  • what 2 "r" words describe how the heart sounds?
    rhythmical and repetitive
  • What serves as a muscular pumping device for distributing blood to all parts of the body?
    heart
  • what is the "lub" sound caused by?
    the closure of AV valves
  • what does ventricular systole do?
    forces blood out of the heart (through SL valves)
  • what do the AV and SL valves do?
    controls the direction of blood flow
  • what type of blood returns to the left atrium through the 4 pulmonary veins?
    oxygen-rich blood
  • When the AV valves close what is it preventing?
    blood from rushing back into the atria during ventricular contraction
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