Midgut
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Midgut | ||
|---|---|---|
 | ||
| The midgut and hindgut. | ||
| Carnegie stage | 10 | |
| Precursor | Mesenchyme | |
| Dorlands/Elsevier | m_16/12535859 | |
The midgut is the portion of the embryo from which most of the intestines are derived. After it bends around the superior mesenteric artery, it is called the "midgut loop". It originates from the foregut at the opening of the bile duct into the duodenum and continues through the small intestine and much of the large intestine until the transition to the hindgut about two-thirds of the way through the transverse colon.
Structures in the adult midgut
- Duodenum (3rd and 4th parts)
- Jejunum
- Ileum
- Cecum
- Appendix
- Ascending colon
- Hepatic flexure of colon.
- Transverse colon (proximal two-thirds)
Vascular, lymphatics and innervation
Arterial supply to the midgut is from the superior mesenteric artery, an unpaired branch of the aorta. Venous drainage is to the portal venous system. Lymph from the midgut drains to prevertebral superior mesenteric nodes located at the origin of the superior mesenteric artery from the aorta. Portal drainage carries all non-lipid nutrients from digestion to the liver for processing and detoxification, while lymphatic drainage carries fatty chyle to the cisterna chyli. Autonomic innervation of the midgut is from the superior mesenteric plexus.
Clinical notes
- Malrotation of the midgut during development can lead to volvulus.
- Pain in the midgut is referred to the umbilical region (around the belly button)
See also
External links
- Embryology at UNC digest-020
- radio/450 at eMedicine - "Midgut Volvulus"
- 00494 at CHORUS
- Umich.edu - development
 | This developmental biology article is a stub. You can help Wikipedia by expanding it. |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
