Bio: Circulatory

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Author:
strikeback
ID:
112229
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Bio: Circulatory
Updated:
2011-10-26 15:04:46
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bio
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Circulatory
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  1. What does the circulatory system transport?
    Respiratory gases, nutrients, waste products, hormones, antibodies, salts and heat
  2. Why is the transportation of heat important?
    To maintain body temperature in Endothermic animals and transfter heart when obtained in Ectothermic animal
  3. How is heat transfered in the blood?
    Arteries and veins run parallel to each other So heat from the arteries (coming from the core) is transferred over to the veins.
  4. What are the three components of the circulatory system?
    • 1) Circulating fluid
    • 2) A propulisve organ
    • 3) Vascular system (vessels, capilaries ext)
  5. Does an open system have high or low blood pressure & blood flow?
    Low blood pressure and blood flow
  6. Does a closed system or open system have a slower return of blood to the heart?
    The open system has a slower return of blood to the heart
  7. Which system (open or closed) includes invertebrates?
    Both systems do
  8. Which system (open or closed) includes vertebrates?
    Only the closed system
  9. Which system (open or closed) has a direct exchange between blood and tissues?
    The open system
  10. Does the open system have an incomplete or enclosed system of vessels?
    Incomplete system of vessles
  11. Does the closed system have an incomplete or enclosed system of vessels?
    Enclosed system of vessles
  12. Does a closed system have high or low blood pressure and blood flow?
    High blood pressure and blood flow
  13. Which system (open or closed) has a blood tissue exchance across the capilary wall
    Closed system
  14. What are the 3 main advantages of a closed system?
    • 1) Control of the velocity and distribution of blood flow
    • 2) Allows increases in metabolic rate & body mass
    • 3) Lead to the evolution of the complex kidney
  15. What is are advantages of a divided system?
    • 1) Higher blood pressure to body
    • 2) increased metabolic reate
    • 3) increased body mass
  16. An undivided system has little/no separation between?
    The systemic and pulmonary circuits
  17. What are the 3 evolutionary trends from (water breathing) to (air breathing)
    • 1) increased oxygen uptake
    • 2) higher blood flow and pressure
    • 3) more seperation between oxygenated and deoxygenated blood
  18. What are the 4 chambers of the fish heart (in order of blood flow)
    • Sinus venosus
    • Atrium
    • Ventricle
    • Bulbus Arteriosis or Conus Arteriosis
  19. A shark has a conus arteriosis or a bulbus arteriosis?
    Conus arteriosis
  20. What aids in the serperation of oxygenated and deoxygenated blood in air breathing lungfishes
    • 1) Division of the heart is more complete
    • 2) Partial septum dividing the atrium and ventricle
    • 3) Spiral folds in the bulbus cordis

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