The Endocrine System

The Pituitary

High mag of the Anterior Pituitary – note eosinophilic and basophilic cells

High mag of the Posterior Pituitary – neurons, capillaries, and pituicytes

High mag of the Posterior Pituitary – note Herring Bodies (arrow)

The Thyroid & Parathyroids

High mag of thyroid follicles – note Parafollicular or C-Cells (arrows)

The Adrenal Glands

Low magnification of the Adrenal Gland

Medulla

Cortex

Cortex

Adrenal Cortex

Zona Glomerulosa

Zona Fasciculata

Zona Reticularis

Adrenal Cortex

Zona Glomerulosa

(clumps, cords, and follicle like structures

Zona Fasciculata

(cords of spongiocytes)

Adrenal Gland

Zona Fasciculata

cords of spongiocytes

Zona Reticularis

darker staining cells

Adrenal Medulla

The Islets of Langerhan

Low magnification of the Pancreas with Islets of Langerhans (arrows)

High mag of an Islet – note Beta cells and more eosinophilic Alpha2 cells

Acini

Alpha Cells