Lab 14 (Endocrine/justo)

Target Cell

Pituitary Gland

Parathyroid Gland

-chief cells make n secrete PTH and oxyphil cells (cant be seen on slides)

Thyroid Gland

-stores hormones in follicles thats formed by T thyrocytes/Follicle cells (synthesize thyroglobulin / TGB)

• TBG stored in lumen

-btw adjacent follicles are C thyrocytes/parafollicular cells (cuboidal cells), make calcitonin

-enlarged thyroid gland = goiter

Follicle Cells Hormone Effect

Parafollicular Cells Hormone Effect

PTH Effect

Cortex (Suprarenal/Adrenal Gland)

-outer part, made of glandular epithelium

-3 diff zones, all secreting diff things

• Zona Glomuerulus (outermost): mineralocorticoids (eg; aldosterone),

• Zona Fasciculata (intermediate): glucocorticoids (eg; cortisol),

• Zona Reticularis (innermost): androgens (eg; DHEA),

Medulla (Suprarenal/Adrenal Gland)

-middle part, made of chromafin cells (no axon neurons)

-secretes epinephrine/norepinephrine:

Pineal Gland

Hypothalamus

Pancreas

-among pancreatic acini (secretory units) are pancreatic islets (lighter patches), which make insulin and glucagon

• acini:

• Glucagon:

• Insulin:

Ovaries

-2 structures: corpus luteum and granulosa cells, makes

• Porgesterone:

• Relaxin:

• Inhibin:

• Estrogens:

-promordial follicles develop into primary follicles (has follicular cells around them, has layer of granulosa cells deep), then to secondary (fluid btw cuboidal epithelium)

-ovarian follicle ruptures (becomes corpus luteum), releases oocyte

Testes

-each lobule in the testes has coiled seminiferous tubules (produce spermatozoa)

• some lobule

Thymus

Anterior Pituitary

Oxytocin (OT)

Antidiuretic Hormone (ADH)

Posterior Pituitary