Many adults living in the US become curious about doctor prescribed growth hormone replacement therapy when they begin to experience chronic symptoms, such as low energy, fatigue and low sex drive, that are frequently associated with your bodyâs declining growth hormone levels.
External, or exocrine, secretion is distinguished from internal, or endocrine, secretion. In external secretion the products elaborated by a gland are released into the external environment; the secretion first enters the glandular duct, from which it is discharged onto the surface of the body or into hollow organs.
Report Abuse. Both secrete hormones. Exocrine glands secrete hormones via a duct often externally e.g. ducts in skin, eyes etc., endocrine hormones are secreted into the bloodstream so that they can quickly be dispersed to their effector cells. DragonReborn Â· 3 years ago. Thumbs up.