BIOLOGY 20 Lecture Notes - Lecture 26: Tetany, Corpus Luteum, Hypoparathyroidism
Document Summary
Anterior lobe of the pituitary synthesise and secretes six principal hormones. Fsh (follicle stimulating hormone: stimulates secretion of ovarian sex hormones, development of ovarian follicles and sperm production. Lh (luteinizing hormone: stimulation ovulation, stimulates corpus luteum to secrete progesterone, Tsh (thyroid stimulating hormones) stimulates testes to secrete testosterone. Stimulates secretion of thyroid hormone which increases metabolic rate, stimulates appetite, increase growth of hair, skin, teeth, increase respiratory rate, increase heart rate. Stimulates adrenal cortex to secrete glucocorticoids eg cortisol which stimulates fat and protein metabolism, gluconeogenesis, helps to repair damaged tissues and has an anti-inflammatory effect. After birth stimulates mammary glands to synthesise milk and in males makes testes more sensitive to lh and indirectly enhances secretion of testosterone by testes. Gh has widespread effects on the body tissues. Stimulates liver cells to synthesise somatomedins (promotes cell growth and division) which increase uptake of amino acids and their incorporation into proteins by various tissues.
