Title: What is the Function of the Small Intestine, Location, Parts, Diseases & Facts?
Headings: What is the Function of the Small Intestine, Location, Parts, Diseases & Facts?
What is the Function of the Small Intestine, Location, Parts, Diseases & Facts?
What is Small Intestine?
Table of Contents
Small Intestine Location
How Food Moves Along Digestive Tract
Small Intestine vs Large Intestine
Small Intestine Parts
Duodenum
Sometimes, it may reach the length of 15 inches. [8]
The Superior Part
The Descending Part
The Horizontal Part
The Ascending Part
Jejunum
Ileum
Small Intestine Histology
Mucosa
Intestinal Epithelium
Lamina Propria
Muscularis Mucosae
Submucosa
Muscularis Externa
Serosa
Small Intestine Function in Digestive System
Neutralization
Protection from Acids
Protection from Microbes
Emulsification of Fats
Mechanical Digestion
Chemical Digestion
Absorption of Nutrients
Bowel Movements
Role in Immunity
Hormonal Secretions
Secretin
Cholecystokinin
Gastric Inhibitory Polypeptide
Motilin
Interesting Small Intestine Facts
Small Intestine Diseases
Small Bowel Obstruction
Causes
Symptoms
Treatment
Celiac Disease
Causes
Symptoms
Treatment
Small Intestine Cancer
Causes
Symptoms
Treatment
Duodenal Ulcer
Causes
Symptoms
Treatment
Intestinal Lymphoma
Causes
Symptoms
Treatment
References
About the Author
Posted by: M. Isaac / Senior writer

Content: The small bowel is small not in terms of length but for its narrow lumen. In fact, it forms the longest part of the gastrointestinal system. On the other hand, the large bowel is not large in terms of length. Actually, it has more than twice the diameter of the small bowel. The main job of small intestine is to absorb nutrients from the digested food while the colon serves as a temporary storage for the digestive wastes before their discharge out of the body. Fig. 4: Image of the small and large intestine. Small Intestine Parts
There are three major small intestine parts, namely, duodenum, jejunum and ileum. Moving from the stomach to the large intestine, they appear in the following sequence: