Pituitary: Left Anterior, Right Posterior

Anterior pituitary The pink cells are acidophils 1. Somatotrophs Human Growth Hormone (hGH) 2. Lactotrophs Prolactin (PRL)

The dark purple cells are basophils: 1. Corticotrophs Adrenocorticotropic Hormone (ACTH) Melanocyte-stimulating Hormone (MSH) 2. Thyrotrophs Thyroid Stimulating Hormone (TSH) 3. gonadotrophs Follicle Stimulating Hormone (FSH) Luteinizing Hormone (LH) Anterior pituitary

Anterior pituitary The pale staining chromophobes have few cytoplasmic granules, but may have secretory activity

Pituitary: Left Anterior, Right Posterior

These axons from the hypothalamic- Hypophyseal tract release ADH and Posterior Pituitary These axons from the hypothalamic- Hypophyseal tract release ADH and Oxytocin

Thyroid and Parathyroid glands

Large open spaces are follicles for storage of I2 Thyroid 100X

Follicular cells: T3 and T4 Thyroid 400X

Parafollicular cells: Calcitonin Thyroid 400X

Parathyroid 100X

Parathyroid Hormone Parathyroid 400X

Adrenal Gland 100X, Cortex

Adrenal Gland Cortex, Zona Glomerulosa Aldosterone

Adrenal Gland Cortex, Zona Fasciculata Cortisone, Hydrocortisone

Adrenal Gland Cortex, Zona reticularis androgens, mostly dehydroepiandosterone (DHEA)

Adrenal Medulla Epinephrine and norepinephrine

Pancreas 100X, Islets of Langerhans

Pancreas 100X, Islets of Langerhans Alpha Cells: Secrete Glucagon Beta Cells: Secrete Insulin Delta Cells: Secrete Somatostatin F-Cells: Secrete Pancreatic Polypeptide

Testes, 100X

Testes, 400X Interstitial cells Testosterone

Ovary, 40X

Ovary, 100X Graafian follicle with oocyte Follicular cells Estrogens

Ovary, 100X Corpus Luteum Progesterone