previous studies have suggested that experimental alterations in adrenomedullary reactivity , i.e. , changes in catecholamine release in response to a standard dose of acetylcholine , may be partially accounted for by changes occurring at the level of the adrenal medulla itself , independent of both the central nervous system and the innervation of the adrenal gland .
C0001629
adrenal medulla
C0001625
adrenal gland