Pulse of Physiology

Learn about the four key pulmonary pressures—atmospheric, intra-alveolar, intrapleural, and transpulmonary—and how their changes drive inhalation and exhalation. Understand how negative intrapleural p...

12 Maalis 20254min

Understand the primary and secondary functions of the respiratory system, including gas exchange, acid-base balance, and vocalization. This episode breaks down ventilation, pulmonary gas exchange, gas...

10 Maalis 20255min

Explore the three phases of hemostasis—vascular spasm, platelet plug formation, and coagulation. Learn how fibrin stabilizes the clot and how fibrinolysis dissolves the clot once healing is complete, ...

10 Maalis 20255min

Understand ABO and Rh blood groups, how antigens and antibodies determine compatibility, and why O-negative is the universal donor while AB-positive is the universal recipient. Learn about hemolytic d...

5 Maalis 20255min

Discover how Boyle’s Law explains air movement and how factors like compliance, airway resistance, and surfactant affect ventilation. Learn how inspiration is active while expiration is usually passiv...

5 Maalis 20255min

Learn how the skeletal muscle and respiratory pumps assist venous return. Discover how muscle contractions propel blood toward the heart and how breathing-induced pressure changes enhance circulation,...

5 Maalis 20255min

Understand how the baroreflex maintains short-term blood pressure stability. This episode explains how baroreceptors in the carotid sinus and aortic arch detect changes in pressure and adjust heart ra...

3 Maalis 20254min

Explore the determinants of blood pressure, including cardiac output, total peripheral resistance, and vessel diameter. Learn how arterioles regulate mean arterial pressure (MAP) and how blood velocit...

3 Maalis 20255min