Properties of the hormone effect 2.Signal Transmission The role of the hormones is to transit the regulatory signals from the control (endocrine)system to the target cells (organs or glands). It could enhance or inhibit 6壁结 some function of the target. 乳头体 3.Highly active 神整垂体 ADHProperties of the hormone effect 2. Signal Transmission The role of the hormones is to transit the regulatory signals from the control (endocrine) system to the target cells (organs or glands). 3.Highly active It could enhance or inhibit some function of the target