Which gland is under hypothalamic control and releases hormones that influence metabolism?

Which gland is under hypothalamic control and releases hormones that influence metabolism?

• A. Hypothalamus
• B. Pineal Gland
• C. Adrenal Glands
• D. Pituitary Gland

Answer: (D)

Understanding how the hypothalamus controls metabolic regulation through the pituitary. The hypothalamus communicates with the pituitary by releasing hormones that tell it when to release or inhibit other hormones. The pituitary then sends signals to other organs to affect metabolism. The classic example is the anterior pituitary releasing thyroid-stimulating hormone in response to hypothalamic signals, which prompts the thyroid to produce thyroid hormones that set the body's metabolic rate. Growth hormone from the anterior pituitary also influences metabolism by modulating how the body uses fats, proteins, and glucose. The posterior pituitary stores and releases vasopressin and oxytocin, which are not primary drivers of metabolism. This chain—hypothalamus directing the pituitary, and the pituitary controlling metabolic targets—explains why the pituitary gland is the gland under hypothalamic control that releases hormones influencing metabolism.