The function of apocrine glands is sensitive to which hormone?

• A. Cortisol
• B. Insulin
• C. Adrenaline
• D. Estrogen

Answer: (C)

Apocrine glands, primarily found in areas such as the armpits and groin, are stimulated by various factors, including hormonal influences, particularly those related to stress and emotional responses. Adrenaline, also known as epinephrine, is a hormone released by the adrenal glands during stressful situations and can activate the sympathetic nervous system.

The apocrine glands are particularly responsive to hormonal changes associated with stress and sexual arousal. Adrenaline can increase the activity of these glands, leading to the secretion of sweat that often has a strong odor. This secretion is different from that of eccrine glands, which are more abundant and primarily responsible for thermoregulation.

While cortisol, insulin, and estrogen do have various roles in regulating physiological processes, they do not have the same direct effect on the stimulation of apocrine glands as adrenaline does. Therefore, the primary hormonal influence on these glands is closely associated with adrenaline, making it the correct choice in this context.