Cardiovascular System

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Cardiovascular System
2013-10-04 22:00:09

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  1. aorta
    Largest artery in the body.
  2. arteriole
    Small artery.
  3. artery
    Largest type of blood vessel; carries blood away from the heart to all parts of the body.
  4. atrium
    One of two upper chambers of the heart.
  5. capillary
    Smallest blood vessel. Materials pass to and from the bloodstream through the thin capillary exhalation.
  6. carbon dioxide
    Gas released by body cells.
  7. coronary arteries
    Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
  8. deoxygenated blood
    Blood that is oxygen-poor.
  9. diastole
    Relaxation phase of the heartbeat.
  10. electrocardiogram
    Record of the electricity flowing through the heart. Electricity is represented by waves or deflections called P, QRS, or T.
  11. endocardium
    Inner lining of the heart.
  12. mitral valve
    Valve between the left atrium and left ventricle; bicuspid valve.
  13. murmur
    Abnormal swishing sound caused by improper closure of the heart valves.
  14. myocardium
    Muscular, middle layer of the heart.
  15. pacemaker (sinoatrial node)
    Specialized nervous tissue in the right atrium that begins the heartbeat.
  16. pericardium
    Double-layered membrane surrounding the heart.
  17. pulmonary artery
    Artery carrying oxygen-poor blood from the heart to the lungs.
  18. pulmonary circulation
    Flow of blood from the heart to the lungs and back to the heart.
  19. pulmonary valve
    Valve positioned between the right ventricle and the pulmonary artery.
  20. pulmonary vein
    One of two pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart.
  21. pulse
    Beat of the heart as felt through the walls of the arteries.
  22. septum
    Partition or wall dividing a cavity, ex. R. Atrium & L. Atrium.
  23. sinoatrial node
    Pacemaker of the heart.
  24. sphygmomanometer
    Instrument to measure blood pressure.
  25. systemic circulation
    Flow of blood from body tissue to the heart and then from the heart back to body tissues.
  26. systole
    Contraction phase of the heart
  27. tricuspid valve
    Located between the right atrium and the right ventricle.
  28. valve
    Structure in veins or in the heart that temporarily closes an opening so that blood flows in only one direction.
  29. vein
    Vessel that carries blood from body tissues and lungs back to the heart. Veins contain valves to prevent backflow of blood
  30. vena cava
    Largest vein in the body. The superior and inferior vena cava return blood to the right atrium of the heart.
  31. ventricle
    One of two lower chambers of the heart.
  32. venule
    Small vein.