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CIRCULATION

CIRCULATION. THE PROBLEM. INTERNAL TRANSPORT Gases Nutrients, Wastes Hormones Rate of Diffusion Q = DA (C1 - C2) X. THE SOLUTION: PATTERNS OF CIRCULATION. No Specific Structures Open Circulation Closed Circulation. THE GAME PLAN....

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CIRCULATION

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  1. CIRCULATION

  2. THE PROBLEM • INTERNAL TRANSPORT • Gases • Nutrients, Wastes • Hormones • Rate of Diffusion • Q = DA (C1 - C2) X

  3. THE SOLUTION:PATTERNS OF CIRCULATION No Specific Structures Open Circulation Closed Circulation

  4. THE GAME PLAN.... REDUCE DISTANCE FOR DIFFUSION MAXIMIZE SURFACE AREA Q = DA (C1-C2) X

  5. How to circulate substances?

  6. No Specialized Circulatory System Porifera

  7. Porifera Life style Distance for diffusion Area for diffusion Habitat

  8. No Specialized Circulatory System Cnidaria Gastrovascular Cavity Life style Distance for diffusion Area for diffusion Habitat

  9. No Specialized Circulatory System Platyhelminthes Gastrovascular Cavity Surface area Distance for diffusion Life Style Habitat

  10. OPEN CIRCULATORY SYSTEM Mollusca

  11. OPEN CIRCULATORY SYSTEM Arthropoda

  12. OPEN CIRCULATORY SYSTEM CHORDATA: TUNICATE

  13. CLOSED SYSTEM Annelida Squid, Octopus Vertebrates

  14. Mammalian Circulation • A main propulsive organ which forces blood around the body. • Arterial system which acts to distribute blood and to maintain pressure. • Capillaries in which transfer between blood and tissues occurs. • Venous system which acts as a blood volume reservoir and as a way to return blood to heart.

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