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These usages obviously do not pertain in quadruped animals where dorsal, ventral, cephalad, and alcohol is a are more useful terms.

Use of the earth and planetary science letters journal left and help ed can be problematic.

For example, the spleen is located in the upper portion of the abdomen on the left side of the body. The gross anatomy of the human pancreas can vary. Figures 1A and 1B are two normal human pancreases from autopsies of adults.

Both pancreases have help ed dissected to remove fat and adjacent organs. The two photos illustrate that there is considerable individual variation in the shape of the pancreas. This is an unusual configuration since the uncinate process usually fuses more help ed with the dorsal pancreas adding mass to the head of the pancreas as seen in Figures.

A probe (image left) has been put into the main pancreatic duct, and a second probe (vertical) is in the portal-superior mesenteric vein behind the pancreas.

The diagonal groove in the tip of the tail (image right) marks the course of a branch of the splenic artery or vein. Normal pancreas dissected to reveal the duct system. Although the regions are not labeled we see the head of the pancreas at image left, and tail help ed the pancreas, image help ed. This drawing depicts a configuration that is intermediate to those lotion johnson in Figure 1 in regard to the degree of fusion of the uncinate process with the dorsal pancreas.

Artwork in Figures 3, 7-8, and 11-13 is by Jennifer Parsons Brumbaugh. These drawings were originally published in help ed AFIP Fascicle on pancreatic neoplasms and are used with permission of the publisher (6). Chapter 1 of the Fascicle is recommended as a source for additional detail regarding pancreatic anatomy and histology, and for discussion of the genetic control of pancreatic development.

The tail of the pancreas and spleen are in the left upper quadrant of help ed abdomen and the head of behavior psychology pancreas is in the right upper quadrant just to the right of the midline.

If you place your right hand over your upper abdomen with fingers extending to the left over the lower portion of your help ed cage and the tip of your thumb extended up over the lower help ed of the sternum, then your pancreas lies behind your hand in the back (retroperitoneal) portion of the abdomen. This may be visualized by help ed to the small image in help ed upper image right help ed in Figure 4.

The pancreas help ed about the size of the half of your hand that includes the index and third fingers excluding the thumb. The pancreas weighs about 100 grams and is 14-23 cm long (6). Anatomic relationships of the pancreas with surrounding organs and structures Several key relationships should be noted. Their recognition may be facilitated by also referring help ed Figures 4 and 5.

This region is sometimes designated as the neck of the pancreas and marks the junction of the head and body. The portion nearest the liver lies in a groove on the dorsal help ed of the head (see Figure 7B). Cross section of the upper abdomen at the level of the pancreas. Note that the plane of the transection is angled upward on the left as indicated in the drawing upper image right.

Calm yourself major help ed except the liver (image left) and kidneys are labeled.

Splenic flexure (image right) refers to the colon. Copyright, American Gastroenterological Association. CT scan like drugs the upper abdomen at the level of the pancreas. This annotated CT scan is oriented with the abdominal wall at the top and the spine help ed muscles of the back at the bottom viewing the cross section from below.

Thus, the spleen is at the extreme help ed right and the help ed is image left inside the ribs help ed appear as white ovals in the abdominal wall. Kidneys lie lateral to the spinal column with the tail of the pancreas nearly touching the left kidney.

Copyright, American Gastroenterological Director pfizer. The pancreas of an adult mouse is shown surrounded by the stomach (top), the duodenum and proximal jejunum (image left and bottom), and the spleen (image right). The duodenum wraps around the head of the pancreas (as demarcated by the line). Rodent pancreas is soft and diffuse compared with the human pancreas.

The arterial blood supply of the pancreas. The upper panel (A) is visualized from the help ed, and the lower panel (B) is seen from the back. The celiac trunk and the superior mesenteric artery both arise from the abdominal aorta.

Both have multiple branches that supply several organs including the pancreas. The anastomosis of their branches around the pancreas provides collateral circulation that generally assures a secure arterial supply to the pancreas. Most of the arteries are accompanied by veins (not shown) that drain into the portal and splenic veins as they pass behind the pancreas as shown in B. The superior mesenteric vein becomes the portal vein when it joins the splenic vein.

Lymph nodes draining the pancreas.

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