Nagyvastagbél

Nagyvastagbél refers to the transverse colon, which is the longest and most mobile part of the large intestine. It extends across the abdomen from the ascending colon to the descending colon. The transverse colon plays a crucial role in the digestive process by absorbing water and electrolytes from the remaining indigestible food matter and transmitting the useless waste material from the body. It is suspended from the stomach by a fold of peritoneum called the transverse mesocolon.

The transverse colon is typically located in the upper abdomen, passing horizontally from the right side to the left side. Its position can vary slightly among individuals and can also change depending on the fullness of the stomach and intestines. This section of the large intestine is characterized by its broad diameter, hence the name "nagyvastagbél" which translates to "large thick bowel" in Hungarian.

The wall of the transverse colon, like other parts of the large intestine, is composed of four layers: mucosa, submucosa, muscularis externa, and serosa. The muscularis externa is responsible for the peristaltic movements that propel the contents of the colon forward. These contractions, along with haustral churning, aid in the mixing and absorption processes.

Conditions affecting the transverse colon include inflammation, such as in Crohn's disease or ulcerative colitis, and the development of polyps or cancerous tumors. Obstructions can also occur, hindering the passage of waste material. Diagnostic imaging techniques, including colonoscopy and barium enemas, are commonly used to examine the transverse colon for abnormalities.