In this article we will discuss about the Digestion and Absorption of Fats from Gastrointestinal Tract. Lipase present in the stomach is unable to hydrolyze fats owing to the high acidity of the gastric contents. Therefore, the major part of the ingested fat is digested in the small intestine. The ingested fat reaching the duodenum is mixed with the bile and pancreatic juice which contains lipase.
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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. The stomach serves as a temporary receptacle for storage and mechanical distribution of food before it is passed into the intestine. In animals whose stomachs contain digestive glands, some of the chemical processes of digestion also occur in the stomach. The human stomach is subdivided into four regions: the fundus, an expanded area curving up above the cardiac opening the opening from the stomach into the esophagus ; the body, or intermediate region, the central and largest portion; the antrum, the lowermost, somewhat funnel-shaped portion of the stomach; and the pylorus , a narrowing where the stomach joins the small intestine. Each of the openings, the cardiac and the pyloric, has a sphincter muscle that keeps the neighbouring region closed, except when food is passing through. In this manner, food is enclosed by the stomach until ready for digestion. The stomach has the ability to expand or contract depending upon the amount of food contained within it.
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Last Updated: March 5, References. This article was co-authored by Chris M. Matsko, MD. Chris M.