Hormonal basis of reproduction

3. Endocrine glands of cow-

4. Classifications of hormones-

11. General features- Group 1 Group 2 Types Steroids,iodothyronines, calcitriol ,retinoids Polypeptides,proteins, glycoproteins, catecholamines. Solubility Lipophilic Hydrophilic Transport protein Yes No Plasma half life Long (hours to days) Short(minutes) Receptor Intracellular Plasma membrane Mediators Receptor – hormone complex cAMP ,cGMP,Ca 2+, metabolites of complex phosphoinositols, kinase cascades.

18. Release of oxytocin-

21. Structures of steroid hormones- Natural steroids-

22. Synthetic steroids-

23. Synthesis-

24. Synthesis-

25. Cont…..

26. Conversion of testosterone to estradiol-

27. Mechanism of action-

31. Hormones in males-

36. Synthesis of prostaglandins-

37. Action of PGF2 α on CL-

38. Structures-

39. Figure 28.25 The Hormonal Regulation of Ovarian Activity-

40. In females-

42. Follicular development in ovary-

43. Figure 28.12 Hormonal Feedback and the Regulation of the Male Reproductive Function

44. In male animals-