anatomical parts for large and small intestine ,duodenum, cecum &ileum. скачать в хорошем качестве

anatomical parts for large and small intestine ,duodenum, cecum &ileum.

‪@goodmedicine5056‬ ‪@GoodMythicalMorning‬ amazing The horizontal part (inferior or third part, D3) runs from right to left ventrally from the abdominal aorta and inferior vena cava. The ascending part (fourth part, D4) runs cranially along the left side of the vertebral column. This last part of the duodenum joins the intraperitoneally lying jejunum at the duodenojejunal flexure. Here the duodenum is attached to the back of the abdominal wall through the suspensory ligament of duodenum (=ligament of Treitz). Clinically the ligament of Treitz marks the border between the upper and lower gastrointestinal tract. The superior part (first part, D1) lies intraperitoneally and is enlarged proximally (duodenal bulb). It is connected to the liver by the hepatoduodenal ligament. The superior part ends at the superior duodenal flexure and becomes the descending part. The descending part (second part, D2) and the rest of the duodenum lie retroperitoneally. The (common) bile duct and the pancreatic duct unify to a conjoint duct at the hepatopancreatic ampulla (=ampulla of Vater) and empties into the descending part of the duodenum. At the opening there is an elevation of the mucosa, the major duodenal papilla (=papilla of Vater). Many people have an accessory pancreatic duct which empties into an additional papilla, the minor duodenal papilla (=papilla of Santorini). The transition from the descending to the horizontal part of the duodenum takes places at the inferior duodenal flexure. Anatomy  The 2duodenum is about 25 to 30 cm long (“twelve fingers' length”), C-shaped and is located in the upper abdomen at the level of L1-L3. The head of the pancreas lies in the C loop. It may be subdivided into four sections: superior part, descending part, horizontal part and ascending part. The duodenum is the first of the three parts of the small intestine that receives partially digested food from the stomach and begins with the absorption of nutrients. It is directly attached to the pylorus of the stomach. It has a C-shape, it is closely related to the head of the pancreas and consists of four sections: superior, descending, horizontal, and ascending parts. Histologically speaking, the duodenum consists of the typical three layers common to all hollow organs of the gastrointestinal tract, but it has Brunner's glands, which is the characteristic feature of the duodenum. This article will describe the anatomy (sections, bloody supply, innervation) and histology of the duodenum, as well as its important functions رابط القناة ارجو الاشترك في القناة وتفعيل زر الجرس    / @goodmedicine5056