+1 862 207 3288 Hormones are classified into various types on the basis of their chemical structure as under:
(1) Steroid Hormones: Estrogen, Progesterone, Aldesterone, Cortisone etc.
(2) Biogenic Amines Hormones: Adrenaline, Noradenaline, Acetylchloline etc.
(3) Peptide/Protein Hormones: Thyroxine, Glucagon, Insulin, Thyrotropin, Gonadotropins, Adrenocorticotropin, Parathormone etc.
Hormones are secreted in very small amounts. Hormones are chemicals which help in the regulation of various physiological activities like metabolism, growth, reproduction, metamorphoris, ecdysis or moulting, formation of pigment granules and osmoregulation in the body. The regulatory functions of the endocrine system are observed to be controlled either directly or indirectly. In animals it has been observed that the central nervous system influence the hormones regulating the color changes of the skin.
The secretion of gastric hormones are stimulated:
(i) Under the influence of the nervous system and the (ii) local biochemical variations in the organs.
These gastric hormones regulate the secretion of the digestive enzymes.
