Classification of hormone endocrine sys.pptx

Bds

1. CLASSIFICATION Depending upon the chemical nature Amines or amino acid derivatives, e.g. Catecholamine's ( epipnephrine ) Thyroxine (T4), Triiodothyronine (T3) b . Proteins & polypeptides, e.g. Posterior Pituitary hormones, Glucagon Insulin, Parathormone , Ant. Pit. Hormones c. Steroid hormone, e.g. Glucocorticoids , Mineralocorticoids , Vit D

2. B. Depending upon the mechanism of action: Group I hormone- Act by binding to the intracellular receptor e.g. Steroid, Thyroid hormones b . Group II hormone- Act via second messanger to mediate their effect Further classified as- A,B,C,D