Hormone specificity explains how each hormone can have specific effects in widespread parts of the body. Many hormones produced by the endocrine system are classified as tropic hormones. A tropic hormone is a hormone that is able to trigger the release of another hormone in another gland.n addition to the glands of the endocrine system, many other non-glandular organs and tissues in the body produce hormones as well. 1  Heart: The cardiac muscle tissue of the heart is capable of producing the hormone atrial natriuretic peptide (ANP) in response to high blood pressure levels.
All Other Subscribers: Contact O: The Oprah Magazine Customer Service directly at: (800) 846-4020. or visit them online at: http://www.oprah.com/.
Customer service can be reached at www.people.com/customerservice or at 1-800-541-9000, if you wish to cancel or if you have any questions about your PEOPLE subscription. Customer service can be reached at peopledigital@customersvc.com or 1-866-769-0199, if you wish to cancel or have questions about your subscription.