3d image of secretin skeletal formula

secretin hormone water homeostasis body duodenum stomach pancreas liver peptide cells intestinal glands sct gene ph entrez 6343 gastric acid parietal bicarbonate cholangiocytes gallbladder prosecretin precursor osmoregulation water hypothalamus pituitary gland kidney glucagon vasoactive peptide vip inhibitory gip regulation small intestine mucosa electrolyte transport aquaporin 3d hormonal therapy function action endocrine endocrinology level prohormone