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*'''Status of target tissue''' - With overstimulation, target tissues hypertrophy, leading to increased functional tissue and an exaggerated response. Understimulation of target tissues leads to atrophy, resulting in less functional tissue and an inadequate response.
*'''Status of target tissue''' - With overstimulation, target tissues hypertrophy, leading to increased functional tissue and an exaggerated response. Understimulation of target tissues leads to atrophy, resulting in less functional tissue and an inadequate response.
==Chemical Structure of Hormones==
===Hypophysiotropic hormones===
The chemical structure of TRH (Thyrotropin Releasing Hormone), GnRH (Gonadotropin Releasing Hormone), Somatostatin and Dopamine, which are secreted by the hypothalamus, is similar in all mammals. On the contrary, CRH (Corticotropin Releasing Hormone) and GHRH (Growth Hormone Releasing Hormone), vary in their amino acid sequence from mammal to mammal. TRH is a tripeptide, GnRH is a decapeptide and dopamine is a catecholamine. CRH and GHRH have 41 and 44 amino acids respectively.
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[[Category:Endocrine System - Anatomy & Physiology]]
[[Category:Endocrine System - Anatomy & Physiology]]