To take in and break down food for use by the body. The oral cavity, or mouth, is the point of entry of food into the digestive system, illustrated in Figure 1. Here, we’ll see how the two systems partner each other and what one does to keep the other system running. B. Your digestive tract extends from your mouth to your anus, and includes the stomach, small intestine, and large intestine. The two systems work closely to keep us in good physical shape. It's the system responsible for breaking down large molecules in your food into smaller molecules that you can absorb, and it's essentially an exterior surface of the body, since it's regularly exposed to outside substances. Birds are most active foraging in the morning and evening as they refuel after a long night and stock up for the next night, but they will eat at any time of day. Here's how it works. Ruminant stomachs have four compartments: the rumen, the reticulum, the omasum and the abomasum. OTHER DIGESTIVE SYSTEM DIAGNOSES WITHOUT CC/MCC. Observing when and how birds eat is the first step to learning more about their eating habits and digestion. The vertebrate digestive system is designed to facilitate the transformation of food matter into the nutrient components that sustain organisms. Oral Cavity. Quiz Answer Key. The human digestive system is the organ system responsible for extracting nutrition from consumed food items and absorbing the nutritional molecules into the bloodstream. Digestive System. Unlike monogastrics such as swine and poultry, ruminants have a digestive system designed to ferment feedstuffs and provide precursors for energy for the animal to use. Your digestive system works on the foods you eat for about: a.5 hours b.10 hours c.15 hours d.20 hours The digestive system breaks down food into: a.nutrients b.amylase c.saliva d.sphincters During the process of absorption, nutrients from food go from: a.the intestines into the bladder b.the blood into the organs Doing this requires breaking food into smaller pieces mechanically and chemically, so … Its role in maintaining our immune health and, eventually, our overall well-being cannot be underestimated. MDC: 06 — Diseases & Disorders of the Digestive System Digestive Tract. Our digestive health has a lot to do with our immune health and vice versa. Feeding grain with or without forage during the first few weeks of life will result in larger and heavier papillae growth in the rumen. C. To take in oxygen and give off carbon dioxide. B. Esophagus. 2. Bird Eating Behavior . MS-DRG 395. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. 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