NUTR 205 1nd Edition Lecture 8 Outline of Last Lecture I Organs and organ systems II Digestion vs absorption III Digestive system secretions chemical digestion Outline of Current Lecture IV Digestion in mouth V Pharynx VI Stomach Current Lecture Digestion in mouth o Mechanical and chemical digestion o Saliva Secreted from salivary glands after the sight smell or presence of food Contains lubricants enzymes and other substances o Teeth Breakdown food particles o Taste buds Detect food chemicals o Tongue Helps mix food and aids chewing o Bolus formed Pharynx o Part of digestive and respiratory systems o Epiglottis Blocks food from entering the trachea windpipe and lungs Stomach o Temporary storage of food o Stomach lining produces gastric juice containing Water Pepsinogen Activated in the digestive enzyme pepsin Digestive enzyme for protein These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Hydrochloric acid Kills microorganism Unfolds protiens Activates pepsin Inhibits amylase digestive enzyme for carbohydrates Mucus
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