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).
in gland. ...or meshwork, of blood vessels. Endocrine, or ductless, glands (e.g., pituitary, thyroid, adrenal) secrete substances known as hormones directly into the bloodstream rather than through ducts. Exocrine glands (e.g., salivary, sweat, digestive) discharge their products through ducts.