The 'master gland' that controls or influences all of the other endocrine glands is the _____ gland.

• A. adrenal
• B. pituitary
• C. thyroid
• D. pineal

Answer: (B)

Verified step by step guidance

1. Understand the role of the 'master gland' in the endocrine system. The master gland is responsible for regulating and controlling the activities of other endocrine glands.
2. Identify the key functions of each gland mentioned: adrenal, pituitary, thyroid, and pineal.
3. The adrenal gland produces hormones like adrenaline and cortisol, which help regulate metabolism, immune response, and stress.
4. The thyroid gland regulates metabolism, energy generation, and growth and development through the release of thyroid hormones.
5. The pituitary gland, often referred to as the 'master gland,' releases hormones that control other glands in the endocrine system, such as the thyroid, adrenal glands, and reproductive glands.