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Digestive Processes
Questions
Question | Answer |
---|---|
What process is involved in Ingestion? | Mastication: MECHANICAL breakdown by Teeth/Mouth |
What is the function of Mastication? | reducing Food Size by mixing with Saliva and Chewing |
What are the categories of the Digestive Process? | 1. Mastication; 2. Digestion; 3. Absorption; 4. Defecation |
What happens during Digestion? | 1. MOLECULAR breakdown of Carbohydrates & Proteins |
Where do the Enzymes involed in Digestion originate? | Salivary Glands, Stomach, Pancreas, Duodenum |
Where do the Enzymes involved in the MOLECULAR breakdown of Fats originate? | Enzymes from Pancreas and Bile from Liver |
What is Absorption? | movement of material into Circulatory or Lymphatic Systems |
How does Absorption occur in Digestion? | ttransported through Capillaries of the SMALL Intestine |
What are some of the materials absorbed in Absorption? | 1. Sugars from Carbohydrates; 2. Amino Acids from Proteins |
What is the path of Absorption in Digestion? | epithelial cells of Villi --> capillaries of Lamina Propria --> venules of Submucosa --> Superior Mesenteric Vein --> Portal Vein --> Liver |
Where in the Liver is Fat absorbed? | NO where - transported to the Lacteals of the SMALL Intestine |
What is the function of the Lacteals? | ABSORPTION of Fatty products |
What is the path of Absortion for Fatty Products in Digestion? | epithelial cells of Villi --> Lacteals --> lymphatic vessels in Submucosa --> Thoracic Duct --> LEFT Subclavian |
What is Defecation? | ELIMINATION of Feces |
What are Feces composed of? | Fiber, Non-Digestable Foodstuffs, sloughed Intestinal Cells, Bacteria |
Most of the Fecal matter consists of what? | sloughed Intestinal Cells |