Final answer:
The adrenal gland has two distinct parts, the adrenal medulla and adrenal cortex. The adrenal medulla secretes non-steroid hormones like adrenaline, while the adrenal cortex produces steroid hormones like cortisol and aldosterone.
Step-by-step explanation:
The low and high functions of the adrenal gland are known as the adrenal medulla and adrenal cortex, respectively.
The adrenal medulla secretes non-steroid hormones like adrenaline, which is involved in the fight-or-flight response. On the other hand, the adrenal cortex produces steroid hormones including cortisol, which helps regulate metabolism and suppresses the immune system. The adrenal cortex also produces aldosterone, which plays a role in electrolyte balance, and DHEA, a precursor to sex hormones.