Lecture 14 posted - BIO 311D LECTURE 14 Exchange and transport systems(in animals Exchange and transport systems in animals All have-Epithelial

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Unformatted text preview: BIO 311D LECTURE 14 Exchange and transport systems (in animals) Exchange and transport systems in animals All have:-Epithelial tissue-Gradients All do:-Diffusion-Countercurrent exchange-Take in what the body needs and/or clean out waste products Circulatory systems Simple invertebrates: no circulatory system – only a gastrovascular cavity More complex invertebrates: open or closed circulatory system Both have a pump, tubes, and a fluid Vertebrate circulatory systems Cardiovascular system Heart – Atrium or atria (receiving) Ventricle or ventricles (returning) 3 kinds of blood vessels Arteries (away) Veins (towards) Capillaries Why have a separate respiratory and systemic circuit? The evolution of vertebrate circulatory systems Mammalian cardiovascular system Mammalian heart The cardiac cycle Heart beat Arteries, veins, and capillaries Blood flow • Area • Velocity • Pressure • Venous blood Transfer of substances from / to blood...
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This note was uploaded on 01/31/2011 for the course BIOLOGY LE 49610 taught by Professor Hofmannjohann during the Summer '10 term at University of Texas at Austin.

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Lecture 14 posted - BIO 311D LECTURE 14 Exchange and transport systems(in animals Exchange and transport systems in animals All have-Epithelial

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