endocrine gland 内分泌腺 mesoderm-derived structure 中胚层衍生结构 adrenal/interrenal gland 肾上腺/肾间腺 All craniates have groups of cells homologous to the mammalian adrenocortical and chromaffin tissues, but they are scattered in and near the kidneys in fishes. (...) The cortical and chromaffin tissues come together to form adrenal glands in tetrapods.[well established][VHOG] This gland can either be a discrete structure located bilaterally above each kidney, or a cluster of cells in the head kidney that perform the functions of the adrenal gland. In either case, this organ consists of two cells types, aminergic chromaffin cells and steroidogenic cortical cells[GO] UBERON:0006858 VHOG:0001141 adrenal - interrenal gland adrenal gland - interrenal gland adrenal gland/interrenal tissue keep this grouping class so long as it is required for GO suprarenal gland - interrenal gland uberon 保持这个分组类，只要其是GO必需的 所有颅骨都有与哺乳动物肾上腺皮质和嗜铬细胞组织同源的细胞群，但它们散布在鱼类的肾内和肾附近。(...)皮质组织和嗜铬细胞组织在四足动物中汇合形成肾上腺。[well established][VHOG] 肾上腺 - 肾间腺(adrenal - interrenal gland) 肾上腺 - 肾间腺(adrenal gland - interrenal gland) 肾上腺 - 肾间腺(suprarenal gland - interrenal gland) 肾上腺/肾内组织 该腺体可以是位于每个肾脏上方两侧的一个离散结构，也可以是执行肾上腺功能的头肾细胞群体。在任何一种情况下，该器官都由两种细胞类型构成，即嗜胺基化嗜铬细胞和类固醇皮质细胞[GO] neural crest-derived structure 神经嵴衍生结构