Physiology Which hormone, together with the catecholamines, enhances the tone of vascular smooth muscle and assists in elevating blood pressure? A Parathyroid hormone B Glucagon C Thyroxine D Cortisol 💡 Explanation Which hormone, together with the catecholamines, enhances the tone of vascular smooth muscle and assists in elevating blood pressure? ✓ Correct Answer: D. Cortisol