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胰腺是机体的一个重要器官,负责分泌消化外分泌液,也是分泌胰岛素等内分泌激素的器官。胰腺主要部分为腺细胞组成的外分泌部分,分泌大量的酶原颗粒[1],这些颗粒系含有淀粉酶、蛋白酶、脂肪酶、核酸酶等的消化酶;胰岛散在的分布在外分泌腺组织中间。胚胎期,胰腺衍生于发育期的前肠内胚层,向外增生形成两个芽形突起;为背胰芽和腹胰芽[2],背胰芽形成包括胰头、全部胰体和胰尾的胰腺大部分及胰岛;腹芽形成后侧胰头,也含有少数散在的胰岛。在整个发育期,都被区域性基因调控着,向内胚层发出允许
Pancreas is an important organ of the body responsible for the secretion of exogenous secretion of exudate, but also the secretion of insulin and other endocrine hormones organs. The main part of the pancreas is the exocrine part of the glandular cells that secrete a large amount of zymogen particles [1]. These particles contain digestive enzymes such as amylase, protease, lipase and nuclease; scattered islets are located in the middle of the exocrine gland tissue. In the embryonic stage, the pancreas is derived from the developmental stages of the foregut endoderm and outwardly proliferates to form two bud-shaped processes; the dorsal and pancreatic buds are the dorsal and pancreatic buds [2], the dorsal and pancreatic buds include the pancreas head, the pancreas and the pancreas Most of the pancreas and islets; Abdominal formation of the posterior pancreas, also contains a small number of scattered islets. Throughout the developmental period, are regulated by the regional genes, issued to the endoderm allowed