Lecture 16 Mar 1

Lecture 16 Mar 1 - 17:33 Jacowec's lab: MCA241 Go to HSC...

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17:33 Jacowec’s lab: MCA-241 Go to HSC campus? (check out labs, try some out) mjakowec@surgery.usc.edu Today’s presentation Internal physiology The cardiovascular system Heart Blood vessels Blood What is life’s biggest challenge? Getting energy from food The problem of simple diffusion Rate of diffusion is proportional to the square of the distance Closed circulatory system (cricket) Tubular heart Hemolymph in sinuses surrounding organs Open circulatory system (worm)
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Auxiliary hearts Ventral vessels Dorsal vessel (main heart) Physiology and the Internal environment  Homeostasis maintenance of the consistency of the internal environment Perfect life system (LOL?!) Skin Respiratory system Excretory system Digestive system Circulatory system Fish Gill capillaries Gill circulation Systematic circulation Artery Heart Ventricle Atrium Vein
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Systematic capillaries Amphibians, reptiles, mammals and birds Subtle differences among their systems Amphibians Lung and skin capillaries Pulmocutaneous circuit
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Lecture 16 Mar 1 - 17:33 Jacowec's lab: MCA241 Go to HSC...

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