ANATOMY

Detailed explanation-1: -The circulatory system is the transport system for endocrine information. While the nervous system uses neurons, the endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in your body secrete hormones into the blood.

Detailed explanation-2: -Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.

Detailed explanation-3: -Hormones are secreted from glands into the blood and then carried to their target organs where they exert their effects. They carry instructions to cells all over the body. Once the hormones reach a target cell they bind to receptors on the inside or the outside of the cell.