Question

the anterior (front) part of the pituitary gland is known as the master gland because

its hormones are released in the cerebral fluid, not in the bloodstream.

it is a dual-purpose gland that performs both digestive and endocrine functions.

it controls the hypothalamus and its functions.

almost all of its hormones direct the activity of target glands elsewhere in the body.

Explanation:

1. Analyze the first option: The anterior pituitary releases hormones into the bloodstream (not cerebral fluid), so this is incorrect.
2. Analyze the second option: A gland with both digestive and endocrine functions is the pancreas, not the anterior pituitary, so this is incorrect.
3. Analyze the third option: The hypothalamus controls the anterior pituitary (not the other way around), so this is incorrect.
4. Analyze the fourth option: The anterior pituitary is called the master gland because its hormones (like TSH, ACTH, etc.) regulate the activity of other endocrine glands (target glands) in the body, which matches this option.

Answer:

D. almost all of its hormones direct the activity of target glands elsewhere in the body.