Occurrence of adrenaline and noradrenaline cells in the adrenal gland of the Gentoo penguin (Pygoscelis papua).
D000313:Adrenal Medulla / Q000166:cytology*; D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D003594:Cytoplasmic Granules; D004837:Epinephrine / Q000032:analysis*; D006651:Histocytochemistry; D008854:Microscopy, Electron; D009638:Norepinephrine / Q000032:analysis*
D009638:Norepinephrine; D004837:Epinephrine