Figure 10-62: The apex phonocardiogram is displayed simultaneously with the cardiac cycle, as recorded by high-fidelity catheter-tipped micromanometers in the central aorta, left ventricle (LV), and left atrium (LA). The first high-frequency component of Mj is coincident with the downstroke of the left atrial cwave and is separated from left ventricular-left atrial pressure crossover by an interval of 30 ms. (From Shaver JA, Saderni R, Reddy PS, et al. Normal and abnormal heart sounds in cardiac diagnosis: I. Systolic sounds. Curr Probl Cardiol i985; i0:i0-53. Reproduced with permission from the publisher and authors.)

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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