Physiology Which one of the following acts to increase the release of Ca2+ from endoplasmic reticulum A Inositol triphosphate B | Parathyroid hormone C 1,25 - dihydroxy choleciferol D Diacyglycerol 💡 Explanation Which one of the following acts to increase the release of Ca2+ from endoplasmic reticulum ✓ Correct Answer: A. Inositol triphosphate