hypothalamus dopamine amount 2019-10-30T15:08:44Z CMO:0003106 The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine. Trait.ontology VT:0010868 caripark brain dopamine amount