1. The endocrine glands secrete behavior-regulating hor-mones directly into the bloodstream.

2. Endocrine gland lying on the underside of the Brain.

3. The secretion of an endocrine gland ; a hormone.

4. It is also an endocrine gland secreting at least two important hormones.

5. Pineal gland ( or pineal Body ): Endocrine gland in the Brain that produces melatonin.

6. Thyroid gland: Endocrine gland in the throat that secretes hormones vital to metabolism and growth.

7. Pituitary gland ( or hypophysis ) : Endocrine gland lying on the underside of the brain.