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Countercurrent Exchange and Gas Exchange

Countercurrent Exchange and Gas Exchange. 學生姓名： B9902067 曾紹庭 B9902075 黃柏翰 指導老師：周淑娥 老師 指導助教：洪偉珊 助教. Countercurrent Exchange. The exchange of a chemical substance or heat between two fluids flowing in opposite directions. Concurrent vs. Countercurrent. Fish Gills. Fish Gills.

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Countercurrent Exchange and Gas Exchange

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  1. Countercurrent Exchange and Gas Exchange 學生姓名：B9902067 曾紹庭 B9902075 黃柏翰 指導老師：周淑娥 老師 指導助教：洪偉珊 助教

  2. Countercurrent Exchange The exchange of a chemical substance or heat between two fluids flowing in opposite directions.

  3. Concurrent vs. Countercurrent

  4. Fish Gills

  5. Fish Gills

  6. Countercurrent mechanism 1.Countercurrent multiplication of concentration 2.Countercurrent exchange Countercurrent multiplier systems: Expend energy to create concentration gradients

  7. Countercurrent mechanism • Cortex: 300 mOsm/L • Medulla:1200 mOsm/L Descending limb: water leaves (passively) Ascending limb : NaCl leaves (actively) Descending limb: equibrilium Ascending limb : lower concentration 影片http://www.colorado.edu/intphys/Class/IPHY3430-200/countercurrent_ct.html

  8. Cortex Medulla 影片 http://www.youtube.com/watch?v=AOqIlrQhqHQ&playnext=1&list=PLFB7356B1A84FC018

  9. Albatross

  10. Countercurrent exchange (heat) • 企鵝 • 人類手臂 • 人類陰囊

  11. Information Resourses: http://www.rci.rutgers.edu/~uzwiak/AnatPhys/Urinary_System.html http://www.colorado.edu/intphys/Class/IPHY3430-200/countercurrent_ct.html http://mag.udn.com/mag/campus/storypage.jsp?f_ART_ID=166830 http://www.nicerweb.com/bio1152/Locked/media/ch44/albatross_exchange.html 生理學書籍 Campbell/Reece Biology,Eighth Edition Thanks for your listening

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