<prompt> Phospholipase C acts as second messenger for which of the following hormones?FSHLHTSHGnRH  <response>: GnRH receptors are a pa of G protein coupled receptor superfamily and it functions primarily through the phospholipase C induced diacylglycerol and inositol triphosphate second messenger system. Second messengers used by hormones: CRH, ACTH, LH, FSH, TSH, PTH, calcitonin, glucagon, ADH V2 receptor, hCG: increase cAMP. Prolactin: decrease cAMP. GHRH, GnRH, TRH, ADH V1 receptor, oxytocin: DAG, IP3. Coisol, aldosterone, testosterone, estrogen, progesterone, calcitriol, thyroid hormones: Steroid mechanism. NO: cGMP. Insulin and IGF-1: Tyrosine kinase. Ref: Physiology By Robin R. Preston, page 439 