Physiology Increase in cytosolic calcium from intracellular storage, during smooth muscle contraction is/are due to: (PGI Dec 2008) A CAMP B CGMP C CCMP D 1P.-DAG 💡 Explanation Increase in cytosolic calcium from intracellular storage, during smooth muscle contraction is/are due to: (PGI Dec 2008) ✓ Correct Answer: D. 1P.-DAG