Secretin muaj nyob rau hauv magnocellular neurons ntawm paraventricular thiab supraoptic nuclei ntawm hypothalamusthiab raws cov kab mob neurohypophysial mus rau neurohypophysis.
CCK thiab secretin tso tawm nyob qhov twg?
Cov kab mob no cuam tshuam li cas? Thaum nkag mus rau hauv duodenum, chyme ua rau tso tawm ob cov tshuaj hormones los ntawm cov hnyuv me: secretin thiab cholecystokinin (CCK, yav tas los hu ua pancreozymin) hauv cov lus teb rau cov kua qaub thiab rog, feem.
CCK khaws cia nyob qhov twg?
Enteric endocrine cells pob CCK hauv cov khoom zais cia uas khaws cia nrog rau lub ntsej muag basolateral ntawm tes, yog li tso cai rau CCK zais cia rau hauv interstitium thaum lub xovtooj txhawb nqa. Hauv vivo, noj cov protein thiab rog yog cov khoom noj khoom haus loj ntawm CCK tso tawm.
Puas muaj secretin hauv ntshav?
Secretin nkag mus rau hauv cov hlab ntsha thiab taug kev mus rau pancreas, qhov chaw uas nws txhawb nqa cov ducts kom tso tawm bicarbonate thiab cov kua dej ntau rau hauv cov kab mob pancreatic. Cov kab mob hauv cov hlab ntsha yog nyob rau hauv cov phab ntsa ntawm lub pancreatic duct. Cov kab no coj los ntawm cov kab mob acinar ntawm lub txiav mus rau ampulla ntawm Vater.
pom secretin nyob qhov twg?
[13] Secretin pom nyob rau hauv cov magnocellular neurons ntawm paraventricular thiab supraoptic nuclei ntawm hypothalamusNyob rau hauv cov xeev siab osmolality, secretin raug tso tawm los ntawm posterior pituitary - qhov no ua rau Ua kom cov vasopressin tso tawm hauv hypothalamus.
