What are the five main classes of steroid hormones derived from cholesterol, and what is the primary physiological role of each class?
The five main classes of steroid hormones derived from cholesterol are: androgens (regulate male sexual development), estrogens (control female sexual development), progestins (manage the menstrual cycle and pregnancy), glucocorticoids (oversee metabolism of carbohydrates, proteins, and lipids), and mineralocorticoids (regulate kidney excretion of salt and water).