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The small intestine is the site where most of the nutrients from ingested food are absorbed. There are microscopic finger - like projections called villi covering the small intestinal walls which increase surface area for absorption. Each villus contains a lacteal and capillaries. The lacteal absorbs the digested fat into the lymphatic system which will eventually drain into the circulatory systemThe circulatory system or cardiovascular system is the organ system which circulates blood around the body of most animals. Functions Following are some basic functions of the human circulatory system: #Delivery of oxygen and nutrients to all parts of the. The capillaries absorb all other digested nutrientNutrients and the body A nutrient is any element or compound that is necessary for or contributes to an organism's metabolism, growth, or other functioning. There are six nutrient groups and these can be divided into those that provide energy and those ths.

Small Intestine Disorders

(see also gastroenterologyGastroenterology or Gastrology might be better described as the field of digestive diseases, which are traditionally separated by anatomic or functional category. For example, disorders of the esophagus might be listed under "esophagus" and also included)

• small intestine obstruction ("high" mechanic ileus)
  • volvulusVolvulus is a condition of the large bowel in which the bowel twists on its pedicle (mesentery) causing a blockage of the blood vessels and thus may lead to necrosis of the bowel, necessitating surgery to remove the damaged portion.
  • obstruction from external pressure
  • obstruction by masses in the lumen (foreign bodies, bezoarA bezoar is a sort of calculus or concretion, a stone found in the intestines of mostly ruminant animals. There are several varieties of bezoar, some of which have inorganic constituents and others organic. Bezoars were formerly sought after because they, gallstoneIn medicine, gallstones are crystalline bodies formed within the body by accretion or concretion of normal or abnormal bile components. Cholesterol stones are usually white or yellow in color and account for about 80 percent of gallstones. They are made ps)
• paralytic ileus
• Crohn's diseaseCrohn's Disease is a chronic inflammatory disease of the alimentary tract and it can involve any part of it from the mouth to the anus. It typically affects the terminal ileum and well demarcated areas of large bowel with relatively normal bowel. It is of
• celiac disease
• carcinoid
• Meckel's Diverticulum
• dumping syndrome
• infectious diseases
  • giardiasis
  • ascaridosis
• ischeamic injury