Gourt > Health > Conditions and Diseases > Cancer > Gastrointestinal > Small Intestine (1)
In biology the small intestine is the part of the gastrointestinal tract between the stomach and the large intestine (colon). In humans over 5 years old it is 5-6m long. It is divided into three structural parts: duodenum, jejunum and ileum. Food from the stomach is allowed in to the duodenum by a muscle called the pylorus, or pyloric sphincter, and is then pushed through the small intestine by a process of muscular contractions called peristalsis.
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 system. The capillaries absorb all other digested nutrients.
Although the small intestine is much longer than the large intestine (typically 4-5 times longer), it is referred to as such due to its comparatively smaller diameter. On average, the diameter of the large intestine of an adult human measures approximately 3 times the diameter of the small intestine. Upon viewing accurate diagrams of the digestive system, non-medically trained personnel often initially express bemusement as to why the obviously longer portion of the digestive system is referred to as the small intestine.
More on [ Small intestine ]
Celiac Disease affects 1 out of 33 ppl. An immune-mediated toxic reaction-damage to small intestine-food absorption. http://www.celiac.org
SpiritualMan57 (A. James Hillelson) Wed, 23 Dec 2009 14:59:24 -0000
Celiac Disease affects 1 out of 33 ppl. An immune-mediated toxic reaction-damage to small intestine-food absorption. http://www.celiac.org
Digest WELL2nourish cells; ptyalin secreted by salivary glands digests plant foods 'cept melons~digested in small intestine. Via @ZnaTrainer
indiraabidin (indiraabidin) Wed, 23 Dec 2009 14:51:15 -0000
Digest WELL2nourish cells; ptyalin secreted by salivary glands digests plant foods 'cept melons~digested in small intestine. Via @ZnaTrainer
Digest WELL to nourish cells; ptyalin secreted by salivary glands digests plant foods 'cept melons~digested in small intestine. #ZnaTip
ZnaTrainer (Zna Trainer) Wed, 23 Dec 2009 14:06:41 -0000
Digest WELL to nourish cells; ptyalin secreted by salivary glands digests plant foods 'cept melons~digested in small intestine. #ZnaTip
Abigail Rose: Celiac, Leaky Gut and Hormones - Part one: This, in turn, causes the small intestine to lose the .. http://bit.ly/83wD2N
Regiamaye2 (Regina Maye) Wed, 23 Dec 2009 07:21:47 -0000
Abigail Rose: Celiac, Leaky Gut and Hormones - Part one: This, in turn, causes the small intestine to lose the .. http://bit.ly/83wD2N
there's something very wrong with my small intestine
nicolasbustos (Nicolas Bustos) Wed, 23 Dec 2009 00:29:45 -0000
there's something very wrong with my small intestine
@sellinthedream Buried somewhere deep down below my small intestine.
SnakeLinkSonic (SnakeLinkSonic) Tue, 22 Dec 2009 21:51:18 -0000
@sellinthedream Buried somewhere deep down below my small intestine.
NCI: Small Intestine Cancer - Provides general disease description, stages, recurrence rate, summary about the treatment of small intestine cancer, and health professional information.
Meta Description: [ Expert-reviewed information summary about the treatment of small intestine cancer. ]
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