Embryology and Normal Gross Anatomy Adrenal Cortex The primordium of the adrenal cortex becomes evident at Carnegie stage 14 (~ 5 to 7 mm and 32 days), just lateral to the base of the dorsal mesentery near the cranial end…
Extraadrenal Paraganglia Extraadrenal paraganglia have a centripetal and roughly symmetric distribution on either side of the midline, extending from the middle ear region and base of the skull to the pelvic floor. The sympathoadrenal neuroendocrine system is an integrated complex…
The Normal Adrenal Gland The adrenal gland is a bipartite endocrine gland composed of cortex and medulla, each of which has different embryogenesis, structure, and function. The adrenal cortex arises from cells associated with the coelomic epithelium, which are of…