Transverse colon: Difference between revisions

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{{Short description|Part of the large intestine}}
==Transverse Colon==
{{Use dmy dates|date=October 2023}}


The '''transverse colon''' is the longest and most movable part of the [[large intestine]]. It crosses the abdomen from the [[right colic flexure]] to the [[left colic flexure]].
The '''transverse colon''' is a significant part of the [[large intestine]] in the human [[digestive system]]. It is the longest and most mobile part of the colon, extending across the abdomen from the right to the left side. This section of the colon plays a crucial role in the absorption of water and salts from the material that has not been digested as food, and in the storage of waste before it is excreted from the body.
 
[[File:ColonTrasverso.png|Diagram of the transverse colon|thumb|right]]


==Anatomy==
==Anatomy==
The transverse colon is a continuation of the [[ascending colon]] and extends from the right colic flexure, also known as the hepatic flexure, to the left colic flexure, or splenic flexure. It is suspended by the [[transverse mesocolon]], which allows it to be quite mobile. The transverse colon is located anterior to the [[small intestine]] and is bordered superiorly by the [[stomach]] and [[liver]].
 
The transverse colon is located between the [[ascending colon]] and the [[descending colon]]. It begins at the hepatic flexure, where the ascending colon turns horizontally, and ends at the splenic flexure, where it turns downward to become the descending colon. The transverse colon is suspended by the [[transverse mesocolon]], a fold of [[peritoneum]] that allows it to be quite mobile within the abdominal cavity.
 
[[File:Gray1223.png|Anatomical illustration of the large intestine|thumb|left]]
 
===Structure===
 
The transverse colon is approximately 45-60 cm in length. It is covered by [[peritoneum]] and is attached to the posterior abdominal wall by the transverse mesocolon. The transverse colon is unique in that it is the only part of the colon that is completely invested in peritoneum, making it intraperitoneal.
 
[[File:Dickdarm-Schema.svg|Schematic of the large intestine|thumb|right]]


===Blood Supply===
===Blood Supply===
The blood supply to the transverse colon is primarily from the [[middle colic artery]], a branch of the [[superior mesenteric artery]]. The [[inferior mesenteric artery]] also contributes via the left colic artery.


===Innervation===
The blood supply to the transverse colon is primarily from the [[middle colic artery]], a branch of the [[superior mesenteric artery]]. The transverse colon also receives blood from the [[left colic artery]], a branch of the [[inferior mesenteric artery]], particularly near the splenic flexure.
The transverse colon receives its nerve supply from the [[autonomic nervous system]]. The [[vagus nerve]] provides parasympathetic innervation, while sympathetic innervation is supplied by the [[superior mesenteric plexus]].


==Function==
==Function==
The primary function of the transverse colon is to absorb water and salts from the material that has not been digested as food, and to store waste products until they are ready to be eliminated from the body. It plays a crucial role in the process of [[digestion]] and the formation of [[feces]].
 
The primary function of the transverse colon is to absorb water and salts from the material that has not been digested as food, and to store waste products until they are ready to be eliminated from the body. The transverse colon also plays a role in the fermentation of unabsorbed material by [[gut flora]].
 
[[File:Diameters_of_the_large_intestine.svg|Diameters of the large intestine|thumb|left]]


==Clinical Significance==
==Clinical Significance==
The transverse colon can be involved in various medical conditions, such as [[colitis]], [[colon cancer]], and [[volvulus]]. It is also a common site for the accumulation of [[gas]] and can be affected by [[irritable bowel syndrome]] (IBS).


==Related pages==
The transverse colon can be involved in various medical conditions, such as [[colonic volvulus]], where the colon twists on itself, or [[colitis]], an inflammation of the colon. It is also a common site for the development of [[colorectal cancer]].
 
[[File:Illu_intestine.jpg|Illustration of the intestines|thumb|right]]
 
==Surgical Considerations==
 
In surgical procedures involving the transverse colon, such as a [[colectomy]], care must be taken to preserve the blood supply from the middle colic artery. The mobility of the transverse colon due to its mesocolon can be advantageous in certain surgical reconstructions.
 
[[File:Gray989.png|Anatomy of the digestive system|thumb|left]]
 
==Related Pages==
 
* [[Large intestine]]
* [[Large intestine]]
* [[Digestive system]]
* [[Digestive system]]
* [[Colon (anatomy)]]
* [[Colorectal cancer]]
* [[Colitis]]
 
[[File:Gray1034.png|The colon and its parts|thumb|right]]


==Gallery==
==Gallery==
<gallery>
<gallery>
File:ColonTrasverso.png|Diagram of the transverse colon
File:Gray1223.png|Anatomical illustration of the large intestine
File:Dickdarm-Schema.svg|Schematic of the large intestine
File:Diameters_of_the_large_intestine.svg|Diameters of the large intestine
File:Illu_intestine.jpg|Illustration of the intestines
File:Gray989.png|Anatomy of the digestive system
File:Gray1034.png|The colon and its parts
File:Digestive_system_diagram_en.svg|Diagram of the digestive system
File:Digestive_system_diagram_en.svg|Diagram of the digestive system
File:Transverse_colon.jpg|Image of the transverse colon
</gallery>
</gallery>
==References==
* Moore, K. L., Dalley, A. F., & Agur, A. M. R. (2013). ''Clinically Oriented Anatomy''. Lippincott Williams & Wilkins.
* Standring, S. (2015). ''Gray's Anatomy: The Anatomical Basis of Clinical Practice''. Elsevier Health Sciences.


[[Category:Digestive system]]
[[Category:Digestive system]]
[[Category:Large intestine]]
[[Category:Gastroenterology]]
<gallery>
File:ColonTrasverso.png|Transverse colon
File:Gray1223.png|Gray's Anatomy illustration of the transverse colon
File:Dickdarm-Schema.svg|Diagram of the large intestine
File:Diameters_of_the_large_intestine.svg|Diameters of the large intestine
File:illu_intestine.jpg|Illustration of the intestine
File:Gray989.png|Gray's Anatomy illustration of the digestive system
File:Gray1034.png|Gray's Anatomy illustration of the colon
File:Digestive_system_diagram_en.svg|Digestive system diagram
File:Transverse_colon.jpg|Transverse colon
</gallery>

Latest revision as of 10:56, 23 March 2025

Transverse Colon[edit]

The transverse colon is a significant part of the large intestine in the human digestive system. It is the longest and most mobile part of the colon, extending across the abdomen from the right to the left side. This section of the colon plays a crucial role in the absorption of water and salts from the material that has not been digested as food, and in the storage of waste before it is excreted from the body.

Error creating thumbnail:
Diagram of the transverse colon

Anatomy[edit]

The transverse colon is located between the ascending colon and the descending colon. It begins at the hepatic flexure, where the ascending colon turns horizontally, and ends at the splenic flexure, where it turns downward to become the descending colon. The transverse colon is suspended by the transverse mesocolon, a fold of peritoneum that allows it to be quite mobile within the abdominal cavity.

Error creating thumbnail:
Anatomical illustration of the large intestine

Structure[edit]

The transverse colon is approximately 45-60 cm in length. It is covered by peritoneum and is attached to the posterior abdominal wall by the transverse mesocolon. The transverse colon is unique in that it is the only part of the colon that is completely invested in peritoneum, making it intraperitoneal.

File:Dickdarm-Schema.svg
Schematic of the large intestine

Blood Supply[edit]

The blood supply to the transverse colon is primarily from the middle colic artery, a branch of the superior mesenteric artery. The transverse colon also receives blood from the left colic artery, a branch of the inferior mesenteric artery, particularly near the splenic flexure.

Function[edit]

The primary function of the transverse colon is to absorb water and salts from the material that has not been digested as food, and to store waste products until they are ready to be eliminated from the body. The transverse colon also plays a role in the fermentation of unabsorbed material by gut flora.

File:Diameters of the large intestine.svg
Diameters of the large intestine

Clinical Significance[edit]

The transverse colon can be involved in various medical conditions, such as colonic volvulus, where the colon twists on itself, or colitis, an inflammation of the colon. It is also a common site for the development of colorectal cancer.

File:Illu intestine.jpg
Illustration of the intestines

Surgical Considerations[edit]

In surgical procedures involving the transverse colon, such as a colectomy, care must be taken to preserve the blood supply from the middle colic artery. The mobility of the transverse colon due to its mesocolon can be advantageous in certain surgical reconstructions.

File:Gray989.png
Anatomy of the digestive system

Related Pages[edit]

File:Gray1034.png
The colon and its parts

Gallery[edit]