Physiology Final Exam Latest Exam 2025 2026 Solved Questions & Answers Verified 100% Graded A+

Page 1 of 92 PHYSIOLOGY FINAL EXAM LATEST EXAM 2025 - 2026 SOLVED QUESTIONS & ANSWERS VERIFIED 100% GRADED A+ (LATEST VERSION) WELL REVISED AND HIGHLY RECOMMENDALE 100% GUARANTEE PASS Physiology Exam The flattening of the action potentials of myocardial contractile cells, called the plateau phase, is due to a combination of ________ K+ permeability and ________ Ca2+ permeability A. decreasing, increasing B. decreasing, decreasing C. increasing, increasing D. increasing, decreasing A. decreasing, increasing The action potentials of myocardial autorhythmic cells, are due to a combination of increasing Na+ and Ca2+ ________ and decreasing K+ ________. A. efflux, efflux B. efflux, influx C. influx, influx D. influx, efflux D. influx, efflux The end of the plateau phase of cardiac contractile cell action potentials is due to the ________ of Ca2+ channels and ________ of K+ channels: A. closing, closing B. opening, opening C. closing, opening D. opening, closing C. closing, openingPage 2 of 92 A typical action potential of a myocardial contractile cell lasts ________ millisecond(s): A. at least 200 B. at least 500 C. 1-5 D. less than 150-100 A. at least 200 The importance of the plateau phase of the action potential of myocardial cells is in: A.