Nutrition Anatomy Lecture Outline

Nutrition Anatomy Lecture Outline - HUN2201, Nutrition...

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HUN2201, Nutrition Anatomy (Chapter 3) 1 DIET AND HEALTH Chronic Diseases: Research indicates that _______ and ___________________ are related to disease Five of six leading causes of ________ are related to _________ or _____________ Many leading ___________________ have a relationship with _________________ Risk Factors: Risk factors- ________________ over time Risk factors __________; focusing one may ___________ another Most prominent are _______________, ____________________, ________________ NUTRITION ANATOMY (Chapter 3) I. INTRODUCTION What is Digestion? _________________________________________________ What is Absorption? _________________________________________________ What is Transport? _________________________________________________ II. ANATOMY OF THE DIGESTIVE SYSTEM A. Parts (and B. Layers) of the Gastrointestinal (GI) Tract External layer of _______________ tissue Layers of _____________ muscle Connective Mucosa, Lumen C. Accessory Organs and Glands 1. Salivary glands _____________________________________ 2. Liver _____________________________________ 3. Gallbladder _____________________________________ 4. Pancreas _____________________________________ III. OVERVIEW OF DIGESTION A. Chemical Processes- ___________ hydrolyze ___________ into smaller units B. Physical Processes 1. Chewing = _____________ breakdown of ____________ 2. Peristalsis- _______________ muscle contractions Muscle layers- __________, ____________, and ___________ (stomach only) muscles 3. Segmentation- _____________ movement in the __________ intestine -back and _________ movement -mixes _________________
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HUN2201, Nutrition Anatomy (Chapter 3) 2 C. Phases of Digestion 1. Cephalic phase ____________ mediated; sight, ________, taste, _____________ of food Optimizes ______________; ______________, absorption, ______________ Response- _________________, __________________ juices secreted 2. Gastric phase- __________reaches stomach; __________, enzymes ______________ 3. Intestinal phase- primary sites of ___________ digestion Secretions from ___________, ______________________, _________________ IV. PROCESS OF DIGESTION A. Mouth 1. Saliva- from ______________ glands a. salivary amylase (starch) Begins ____________ of starch Starch --______________--______________ b. lingual lipase (fat) Limited _____ digestion Triglyceride--______________ + ____________ c. other components Fluid- ____________ food Mucus- protects ______________________ _______________ -kills bacteria 2. Chewing (mastication)- _______________ breakdown of __________ 3. Swallowing- Bolus of _________ enters ________________ ____________ blocks airway Esophageal (cardiac) _______________ control entry to ________________ B. Stomach 1. Gastrin (hormone)- stimulates _____________ secretion and _________________ 2. Hydrochloric acid (HCl) – very strong acid (pH 2)- ____________ contents Denatures ______________
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This note was uploaded on 11/27/2011 for the course HUN 2201 taught by Professor Sitren during the Fall '08 term at University of Florida.

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Nutrition Anatomy Lecture Outline - HUN2201, Nutrition...

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