Physiology Whenever availability of oxygen to tissues decreases immediately A Vasodilation and increase in blood supply to tissue takes place B Vasoconstriction and decreases in blood supply to tissue takes place C Venoconstriction and increase in tissue perfusion pressure occurs D Venodilation and decrease in tissue perfusion pressure occur 💡 Explanation Whenever availability of oxygen to tissues decreases immediately ✓ Correct Answer: A. Vasodilation and increase in blood supply to tissue takes place