What Is Cyclobenzaprine Used For? Cyclobenzaprine hydrochloride (Flexeril Â®) is a prescription medication used to treat muscle spasms. As a muscle relaxant, cyclobenzaprine can help relieve pain, tenderness, and stiffness due to muscle spasms.
The main function of endocrine glands is to secrete hormones directly into the bloodstream. Hormones are chemical substances that affect the activity of another part of the body (target site).In essence, hormones serve as messengers, controlling and coordinating activities throughout the body.he main function of endocrine glands is to secrete hormones directly into the bloodstream. Hormones are chemical substances that affect the activity of another part of the body (target site).
target; blood system; ducts; hormones. a. Endocrine glands release their secretions directly into the blood. In other words they have no ducts. b. Endocrine glands secrete chemicals called hormones. c. Hormones are transported from the endocrine glands to all parts of the body by the blood system. d. Although hormones are carried throughout the body they only affect specific target organs and tissues. 2.