The '''adrenal cortex''' represents 80-90% of the adrenal gland.
The '''adrenal cortex''' represents 80-90% of the adrenal gland.
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The '''[[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]]''' is primarily involved in the production of catecholamines; '''epinephrine and norepinephrine'''. In fetal life, the [[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]]plays a role in the autonomic nervous system. The medulla acts as a sympathetic ganglion with the postganglionic cells lacking axons. Through sympathetic preganglionic fiber stimulation, the medullary cells secrete catecholamines. The [[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]] represents only 10-20% of the adrenal gland.
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The '''[[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]]''' is primarily involved in the production of catecholamines; '''epinephrine and norepinephrine'''. In fetal life, the [[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]] plays a role in the autonomic nervous system. The medulla acts as a sympathetic ganglion with the postganglionic cells lacking axons. Through sympathetic preganglionic fiber stimulation, the medullary cells secrete catecholamines. The [[Adrenal Glands - Anatomy & Physiology#Adrenal Medulla|adrenal medulla]] represents only 10-20% of the adrenal gland.
[[Image:Adrenal Gland Schematic..jpg|700px|small>'''Schematic Diagram of the Adrenal Gland</small>|frameless]]
[[Image:Adrenal Gland Schematic..jpg|700px|small>'''Schematic Diagram of the Adrenal Gland</small>|frameless]]