Pituitary gland

Pituitary gland is located within the sella turcica of the sphenoid bone.

Anterior and posterior pituitary lobe

Adenohypophysis	Neurohypophysis
75% of the gland Ectodermal origin from roof of the stomodeum Three components: Pars tuberalis includes Portion of the infundibular stalk Median eminence of hypothalamus Pars intermedia Pars distalis: majority of the gland, has no direct arterial supply	25% of the gland Diencephalic origin Three components: Pars nervosa (posterior lobe) Infundibulum Nuclei (supraoptic and paraventricular)