Free online courseCardiovascular Physiology

Course Description

Build a strong, practical understanding of how the cardiovascular system works, from the architecture of the heart to the pressures and flows that keep blood moving through the body. This free online course in cardiovascular physiology is designed for learners who want more than memorization: it focuses on the why behind cardiac function, helping you connect anatomy, electrical activity, mechanical pumping, and vascular regulation into a single, coherent picture.

You will explore how the heart is built to prevent backflow, maintain one-way circulation, and adapt to changing demands. From the layers that protect and support the heart to the specialized structures that create efficient pumping, you will learn to interpret form as function—an essential skill for anyone pursuing health studies, clinical pathways, or biomedical fields. Along the way, short exercises reinforce key concepts so you can check your understanding and retain what matters.

A major focus is electrophysiology: how the heart can generate its own rhythm and how external signals fine-tune that rhythm to meet the body’s needs. You will connect intrinsic conduction to autonomic control and the cellular signaling that powers sympathetic responses. This sets a clear foundation for reading electrocardiograms with confidence. Instead of treating ECG tracing as a mystery, you will learn the logic behind deflections, lead orientation, and what major waveforms represent in the cardiac cycle.

The course also strengthens your grasp of hemodynamics by linking cardiac output, stroke volume, and vascular characteristics. You will see how vessel structure influences resistance and perfusion, how microcirculation regulates local flow, and why arterioles play an outsized role in controlling pressure. Finally, you will connect fundamentals of blood pressure to real physiological responses, including how the body compensates for hypotension and what changes during hypertension. If you are preparing for exams, refreshing core physiology, or building clinical reasoning, this course offers a clear, structured way to develop usable cardiovascular intuition.