Here's how it works. The digestive system, without the other organs of digestion, is a continuous hollow tube from the mouth to the rectum. 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. MDC: 06 — Diseases & Disorders of the Digestive System Our digestive health has a lot to do with our immune health and vice versa. 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 Ruminants are hoofed mammals that have a unique digestive system that allows them to better use energy from fibrous plant material than other herbivores. The oral cavity, or mouth, is the point of entry of food into the digestive system, illustrated in Figure 1. Your digestive system is uniquely designed to turn the food you eat into nutrients, which the body uses for energy, growth and cell repair. Ruminant stomachs have four compartments: the rumen, the reticulum, the omasum and the abomasum. Bird Eating Behavior . Quiz Answer Key. The ruminant digestive system Quick facts. This is the job of the digestive system: A. MS-DRG 395. 2. C. Urethra. Your digestive tract extends from your mouth to your anus, and includes the stomach, small intestine, and large intestine. Digestive Tract. B. Esophagus. Ruminant livestock include cattle, sheep, and goats. The human digestive system is the organ system responsible for extracting nutrition from consumed food items and absorbing the nutritional molecules into the bloodstream. The two systems work closely to keep us in good physical shape. Feeding grain with or without forage during the first few weeks of life will result in larger and heavier papillae growth in the rumen. 3. Digestive System. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. 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. Mouth. Its role in maintaining our immune health and, eventually, our overall well-being cannot be underestimated. B. The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. 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. 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