The pars tuberalis is part of the anterior lobe of the pituitary gland

Anterior pituitary

A major organ of the endocrine system, the anterior pituitary, also called the adenohypophysis, is the glandular, anterior lobe of the pituitary gland...

, and wraps the pituitary stalk

Pituitary stalk

The pituitary stalk is the connection between the hypothalamus and the posterior pituitary....

in a highly vascularized sheath.

Histology

Principal cells of the pars tuberalis are low columnar in form, with the cytoplasm containing numerous lipid droplets, glycogen granules, and occasional colloid droplets. A sparse population of functional gonadotrophs are present (indicated by immunoreactivity for ACTH, FSH, and LH).

External links

• Slide at pitt.edu