nutrition chapter 3

nutrition chapter 3 - HUMAN CELLS ~100 Trillion in adult ....

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HUMAN CELLS ~100 Trillion in adult …. ~ 200 different types cell organelles  cells  tissues  organs  systems  living organisms Cell Membrane Bilayer Structural Functional Cytoplasm Cytosol Mitochondria Respiration Nucleus HUMAN DIGESTIVE SYSTEM MAJOR ORGANS: Oral Cavity Esophagus Stomach Small Intestine Colon ACCESSORY ORGANS: Salivary Glands Liver Gall Bladder Pancreas Mouth: Functions : Taste – sweet, sour, salty, bitter
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Chew food Mix food with saliva -Moisten & lubricate food -Act as a solvent -Secrete salivary amylase -Rinse teeth -Swallow bolus Pharynx: Epiglottis:  closes off trachea Esophagus:  transport bolus by peristalsis through esophageal sphincter to stomach. STOMACH Functions: Serve as reservoir Secrete -Acids -Mucous -Proteases -Hormones -Intrinsic factor Mix bolus with gastric secretions
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This note was uploaded on 05/14/2008 for the course NFS 207 taught by Professor Handley during the Spring '08 term at Rhode Island.

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nutrition chapter 3 - HUMAN CELLS ~100 Trillion in adult ....

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