11. Pheochromocytoma is a neoplasm of neural crest origin arising in the adrenal medulla 12. Sixteen tumors were located in the midbrain , three in the pons , and one in the medulla oblongata 13. Acetylcholine and a23187 stimulate epinephrine secretion of isolated rat adrenal medulla cells in vitro 14. Case reports and our cases demonstrate that the medulla may be variable in appearance 15. Zona reticularis lies deep to zona fasciculata and abuts on the medulla in the head and body of the gland 16. Sectioning across the adrenals reveals a golden yellow outer cortex and an inner red to grey medulla 17. In cross section , this normal adult kidney demonstrates the lighter outer cortex and darker medulla with central pelvis 18. Analgesic effect of transplantation of micro - encapsulated adrenal medulla - chromaffin cells to subarachnoid space on patients with advanced cancer 19. Angiotensin ii in rostral ventrolateral medulla mediates amino acids release from spinally projecting nerve terminals in the spinal cord 20. The two channels , which carry this energy , in subtle form in the medulla oblongata , are known as ida and pingala respectively