Which region of the adrenal gland cortex is responsible for producing Aldosterone?

The region of the adrenal gland cortex responsible for producing aldosterone is the zona glomerulosa. This area is the outermost layer of the adrenal cortex and specifically synthesizes and secretes mineralocorticoids, of which aldosterone is the primary hormone. Aldosterone plays a critical role in regulating sodium and potassium levels in the body, influencing blood pressure and fluid balance.

The structure of the adrenal cortex is organized into different zones, each with distinct functions and hormone production. The zona fasciculata, located beneath the zona glomerulosa, primarily produces glucocorticoids like cortisol, which are involved in metabolism and the body’s response to stress. The zona reticulata, the innermost layer, is involved in producing gonadocorticoids, which are sex hormones.

The adrenal medulla, which is the central part of the adrenal gland, produces catecholamines such as epinephrine and norepinephrine, playing a different role in the body's fight-or-flight response.

Understanding the functions of these different regions is crucial for grasping how the adrenal glands contribute to overall hormonal balance and physiological regulation.