What are the two main divisions of the adrenal glands?

The adrenal glands are composed of two primary divisions: the adrenal cortex and the adrenal medulla. The adrenal cortex is the outer layer of the gland, responsible for producing essential hormones such as cortisol, aldosterone, and adrenal androgens. These hormones play critical roles in metabolism, immune response, blood pressure regulation, and overall stress management.

The adrenal medulla, on the other hand, is the inner part of the adrenal glands. It primarily produces catecholamines such as epinephrine (adrenaline) and norepinephrine (noradrenaline), which are vital for the body’s fight-or-flight response, influencing heart rate, blood pressure, and energy mobilization during stress.

This distinction between the two divisions is crucial for understanding the various physiological functions and hormonal regulations that occur within the body, particularly in response to stressors and metabolic needs. The provided options that mention either unrelated structures or glands do not accurately reflect the anatomical and functional divisions of the adrenal glands.