The heart

  1. The Heart muscle is called:
  2. How much does the heart typically weigh for males and females:
    • Males: 10 to 12 oz.
    • Females: 8 to 10 oz.
  3. The space between the lungs, in the center of the chest, that contains 2/3 of the heart, trachea, mainstem bronchi, part of the esophagus, and large blood vessels
  4. A thick fibrous membrane that surrounds the heart; anchors the heart within the mediastinum and prevents overdistention of the heart
  5. Three layers composing the wall of the heart
    • Outer Epicardium
    • Middle Myocardium
    • Inner Endocardium
  6. The thin membrane lining the inside of the heart
  7. Upper chambers of the heart
  8. Lower chambers of the heart
  9. The membrane that separates the Atria
    Interatrial Septum
  10. A thick wall that separates the Ventricles
    Interventricular Septum
  11. Part of the heart that receives blood from that is returned to the heart from other parts of the body
  12. Part of the heart that pumps blood out
  13. The upper and lower portion of the heart are separated by the______________which prevents blood from flowing backward
    Atrioventricular valves
  14. Valves located between the ventricles and the arteries into which they pump blood
    Semilunar valves
  15. Blood flow through the heart
    • Deoxygenated blood to the Right Atrium>
    • Right Ventricle> to Lungs> Oxygenated Blood to the Left Atrium> Left Ventricle > rest of the body
  16. One of the two largest veins in the body; Carries blood from the upper extremities, head, neck, and chest into the heart
    Superior Vena Cava
  17. One of the two largest veins in the body; carries blood from the lower extremities and the pelvic and the abdominal organs to the heart
    Inferior Vena Cava
  18. The volume of blood pumped (ejected) forward with each ventricular contraction
    Stroke volume (SV)
  19. The amount of blood pumped through the circulatory system in 1 minute

    expressed in liters per minute
    • Cardiac output
    • HR x SV
  20. Separates the right atrium from the right venticle
    Tricuspid valve
  21. Separates the left atrium from the left ventricle
    • Mitral valve
    • (a bicuspid valve)
  22. Blood enters the left atrium through the four?
    Pulmonary veins
  23. Arises from the left ventricle and withstands the highest pressures of any vessel in the body
    Ascending aorta
  24. Which blood vessel transports blood to the right atrium
    Vena Cava
  25. A general term for diseases of the myocardium that ultimately  progress to heart failure, acute myocardial infarction, or death
Card Set
The heart
MEDIC 2013 The Heart