tissue epinephrine amount midbrain/pons epinephrine amount 2019-10-30T11:47:36Z Trait.ontology VT:0010831 The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system. caripark brain epinephrine amount