T1 L1: intro to circulation

Cards (18)

  • Shock?
    insufficient perfusion
  • Pulmonary circulation is in series.
  • Systemic circulation is in parallel.
  • Blood pressure equation?
    blood pressure = cardiac output x peripheral resistance
  • Korotkoff sounds?
    artery open: no sound
    artery opening and closing: sound heard (due to turbulence)
    artery closed: no sound
  • What type of blood vessel regulates capillaries, resistance, set blood pressure and total peripheral resistance?
    arterioles
  • Majority of the blood is stored where?
    veins
  • Which type of circulation has low pressure, low resistance and high flow?
    pulmonary circulation
  • Which type of circulation has high pressure, variable flow and resistance?
    systemic circulation
  • Which side of heart has crescent x-section?
    right side (pulmonary circulation)
  • Which side of heart has circular X-section?
    left side (systemic circulation)
  • Apex beat?
    at systole, apex of heart moves forward and strikes the chest wall
  • What is the first heart sound (lub)?
    closing of mitral and tricuspid valves
  • What is the second heart sound (dub)?
    closing of aortic and pulmonary (semilunar) valves
  • Hypoxaemia?
    low O2 content generally through arterial blood
  • Angina pectoris?
    chest pain due to ischaemia of heart tissue or coronary artery disease / embolism
    treat: nitrates (immediate relief)
  • Treatment of myocardial infarction?
    immediate reperfusion: morphine, oxygen, nitrates, aspirin
  • Loss of consciousness due to heart malfunction?
    syncope