MICROANATOMY

Detailed explanation-1: -The true statement about hormones is: b. Hormones interact with receptor sites at target cells. Hormones are made and secreted by endocrine glands into the bloodstream where they will travel to their target cells.

Detailed explanation-2: -The two main sex hormones-estrogen and testosterone-have wide-ranging effects in the body. Produced primarily by the ovaries (estrogen) and testes (testosterone), these hormones affect not just your sexual function but also your bones, brain, and blood vessels, for example.

Detailed explanation-3: -Summary. Endocrine glands secrete hormones straight into the bloodstream. Hormones help to control many body functions, such as growth, repair and reproduction.

Detailed explanation-4: -Hormones act as chemical messengers that are released into the blood stream to act on an organ in another part of the body. Although hormones reach all parts of the body, only target cells with compatible receptors are equipped to respond.