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.
1. Exocrine glands have ducts to carry hormones, while endocrine glands are ductless. 2. Exocrine hormones are released into the external environment, or outside of the body. Endocrine hormones are released into the internal environment, or inside of the body.3. Exocrine glands have sub-classifications. 4. Endocrine response is slower because hormones travel through the blood.. Exocrine hormones are released into the external environment, or outside of the body. Endocrine hormones are released into the internal environment, or inside of the body. 3. Exocrine glands have sub-classifications. 4. Endocrine response is slower because hormones travel through the blood.