2. The Endocrine System The Endocrine System – The hormone system – the body’s chemical messenger system. Including the endocrine glands: Pituitary Thyroid Parathyroid Adrenals Pancreas Ovaries Testes

3. Hormones Hormone – A chemical messenger used by the endocrine system. Many serve as neurotransmitters. Table 3.2 on page 81.

4. The Pituitary Gland The Pituitary Gland: “Master Gland!” Produces hormones influencing the secretions of all other endocrine glands. Secretes the hormone that influences growth. Attached to the Brain’s Hypothalamus.