The pancreas is an organ of the digestive system and endocrine system of vertebrates. In humans, it is located in the abdomen behind the stomach and functions as a gland. The pancreas is a mixed or he
The pancreas (shown here in pink) sits behind the stomach, with the body near the curvature of the duodenum, and the tail stretching to touch the spleen.
This image shows a pancreatic islet when pancreatic tissue is stained and viewed under a microscope. Parts of the digestive ("exocrine") pancreas can be seen around the islet, more darkly. These contain hazy dark purple granules of inactive digestive enzymes (zymogens).
An image using immunohistochemistry to show the location of different cell types in the pancreatic islet. Antibodies against glucagon (red-brown), secreted by alpha cells, show their peripheral position. Antibodies against insulin (blue), secreted by beta cells, show the more widespread and central position that these cells tend to have.
The pancreas originates from the foregut, a precursor tube to part of the digestive tract, as a dorsal and ventral bud. As it develops, the ventral bud rotates to the other side, and the two buds fuse.
The spleen, or milt, is an organ found in almost all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter.
Pancreas
…identified in 1921. The pancreas is an organ that in humans lies in the abdomen, stretching from behind the stomach to the left upper abdomen near the spleen. In adults, it is about 12–15 centimetres (4.7–5.9 in) long, lobulated, and salmon-coloured in appearance. Anatomically, the pancreas is divided into…
A 3D medical animation still of spleen structure and exact location
Spleen seen on abdominal ultrasonography
Maximum length of spleen on abdominal ultrasonography
Micrograph of splenic tissue showing the red pulp (red), white pulp (blue nuclei in lighter background) and a thickened inflamed capsule (mostly pink – top of image). H&E stain.