1. cardiorespiratory system:
    cardiovascular and respiratory system
  2. cardiovascular system:
    heart, blood, and blood vessels
  3. heart
    hollow muscular organ that pumps a circulation of blood through the body by means of rhythmic contraction
  4. mediastinum:
    space in chest between the lungs that contains all the internal organs of the chest, except the lungs
  5. atrium:
    • superior chamber of the heart that receives blood from the veins and forces it into the ventricles.
    • Right atrium: deoxygenated blood returning to the heart from the entire body.
    • Left atrium: blood from the lungs
  6. ventricle
    • the inferior chamber of the heart that receives blood from its corresponding atrium and forces blood into arteries.
    • Left: receives from left artrium and pumps to entire body.
    • Right: blood from right atrium pumps to the lungs.
  7. blood:
    • fluid that circulates in the heart, arteries, capillaries and veins, which carries nutrients and oxygen to all parts of the body and rids the body of waste products. (8% of body weight)
  8. blood vessels:
    network of hollow tubes that circulates blood throughout the body
  9. arteries:
    vessels that carry blood away from the heart
  10. veins
    vessels that carry blood from capillaries toward heart
  11. arterioles
    small terminal branches of an artery, which end in cappilaries
  12. capillaries:
    the smallest blood vessels, which connect venules with arterioles
  13. venules:
    very small veins that connect capillaries to the larger veins.
  14. respiratory system
    a system of organs (lungs and respiratory passageways) that collects oxygen from the external environment a and transports it to the bloodstream
  15. inspiration:
    move air into body
  16. expiration:
    move air out of the body
  17. aerobic
    requires oxygen
  18. anaerobic
    does ont require oxygen
  19. bioenergetics:
    biology of energy transormations and exchanges within the body, and between it and the environment.
  20. adenosine triphosphate (atp)
    cellular structure that supplies energy for many biochemical cellular proccesses by undergoing enzymatic hydrolysis.
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