Within the adrenal gland, androgens are synthesized by cells located in the____________?
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Answer: B. Zona reticularis
Explanation
The zona reticularis is the deepest layer of the adrenal cortex surrounding the adrenal medulla. Cells in this specific cortical layer synthesize and secrete weak adrenal androgens like DHEA. Enzymatic pathways in this zone favor androgen production over glucocorticoid or mineralocorticoid synthesis. The adrenal cortex is divided histologically into three distinct zones with specialized steroidogenic functions. Adrenal androgens contribute to secondary sexual hair development especially in female individuals. Steroid hormones are synthesized from cholesterol precursors through enzymatic modifications in smooth endoplasmic reticulum.
Adrenal tumors in the zona reticularis can cause excessive androgen production leading to virilization. Endocrinologists evaluate adrenal androgen levels when diagnosing congenital adrenal hyperplasia conditions. Understanding adrenal zonation is essential for interpreting clinical endocrine pathology reports. The zona glomerulosa is the outermost cortical layer responsible for synthesizing mineralocorticoid hormones. The zona fasciculata is the thick middle layer of the adrenal cortex that produces glucocorticoid hormones. The adrenal medulla is the inner core that synthesizes catecholamines like epinephrine and norepinephrine.
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