doctor, scientist or researcher holding enlarged anatomical model of pituitary gland - main gland in brain, which is divided into

adenohypophysis adenoma adrenocorticotropic adrenocorticotropin anatomical anatomy anterior antidiuretic brain color control deficiency divided doctor endocrine enlarged follicle function gland gonadotropin growth hold hormone human hypophysis hypopituitarism hypothalamus infundibulum lobe luteinizing main melanocyte metabolism model neurohypophysis oxytocin pituitary posterior prolactin researcher scientist somatostatin stalk stimulating stress thyroid tumor two vasopressin zone