Question

multiple choice question
the main function of the hypothalamus is to direct the activity of the

adrenal gland
pituitary gland
pineal gland
thyroid gland
thymus

Explanation:

The hypothalamus is a key part of the brain - endocrine system connection. It secretes releasing and inhibiting hormones that control the pituitary gland's secretion of hormones. The pituitary gland is often called the "master gland" and the hypothalamus directs its activity.

Answer:

B. pituitary gland