Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Njem: Mkpụrụ ndụ ndị a na-ewepụta peptides Growth hormone-releasing hormone (GHRH ma ọ bụ somatocrinin) na Growth hormone-inhibiting hormone (GHIH ma ọ bụ somatostatin) n'ime ọbara venous portal hypophyseal nke gbara pituitary gburugburu.  Ajụjụ: Gịnị bụ aha ọzọ a na-akpọ homonụ na-egbochi homonụ?
somatostatin