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Sep 14, 2024 · The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms that can be absorbed into the bloodstream.
Sep 14, 2024 · Human digestive system - Anatomy, Organs, Processes: The small intestine, which is 670 to 760 cm (22 to 25 feet) in length and 3 to 4 cm (about 2 inches) in diameter, is the longest part of the digestive tract.
Sep 14, 2024 · Human digestive system - Organs, Processes, Functions: The liver lies under the lower right rib cage and occupies much of the upper right quadrant of the abdomen, with a portion extending into the upper left quadrant. The organ weighs from 1.2 to 1.6 kg (2.6 to 3.5 pounds) and is somewhat larger in men than in women.
Sep 15, 2024 · gastrointestinal tract, pathway by which food enters the body and solid wastes are expelled. The gastrointestinal tract includes the mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus.
Digestion, sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions. This article summarizes the chemical actions of the digestive process.
Sep 14, 2024 · Human digestive system - Pharynx, Esophagus, Stomach: The pharynx, or throat, is the passageway leading from the mouth and nose to the esophagus and larynx. The pharynx permits the passage of swallowed solids and liquids into the esophagus, or gullet, and conducts air to and from the trachea, or windpipe, during respiration.
Sep 9, 2024 · stomach, saclike expansion of the digestive system, between the esophagus and the small intestine; it is located in the anterior portion of the abdominal cavity in most vertebrates.
digestive system disease, any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus, stomach, small intestine, large intestine (colon), pancreas, liver, or biliary tract.
Sep 14, 2024 · Human digestive system - Secretions, Enzymes, Absorption: There are many sources of digestive secretions into the small intestine. Secretions into the small intestine are controlled by nerves, including the vagus, and hormones.
Invertebrate digestive system, any of the systems used by invertebrates for the process of digestion. Included are vacuolar and channel-network systems, as well as more specialized saccular and tubular systems.
