Multiple choice

What is the proper sequence of adrenal cortex zones from outside in?

  1. Zona glomerulosa, zona fasciculata, zona reticularis

  2. Zona reticularis, zona glomerulosa, zona fasciculata

  3. Zona fasciculata, zona glomerulosa, zona reticularis

  4. Zona reticularis, zona fasciculata, zona glomerulosa

  5. Zona glomerulosa, zona reticularis, zona fasciculata

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A Correct answer
Explanation

Zona glomerulosa is the outermost layer of adrenal cortex. It is the major site for aldosterone synthesis and secretion, which is responsible for regulation of blood pressure. Zona fasciculata is the middle layer, which is responsible for secretion of glucocorticoids like cortisole, corticosterone, etc. The innermost layer is zona reticularis, which is responsible for secretion of androgens.