Figure 1413
Human Anatomy And Physiology Premium Course
Photographs of the pulmonary valve viewed from the top—that is, from the pulmonary trunk looking down into the right ventricle. On the left the valve is in the process of opening as blood flows through it from the right ventricle into the pulmonary trunk—that is, toward the viewer. On the right, the valve is in the process of closing, the cusps being forced together by the downward pressure of the blood—that is, by the pressure of the blood in the pulmonary trunk being greater than the pressure in the right ventricle.
From R. Carola, J. P. Harley, and C. R. Noback, "Human Anatomy and Physiology," McGraw-Hill, New York, 1990 (photos by Dr. Wallace McAlpine).
Vander et al.: Human Physiology: The Mechanism of Body Function, Eighth Edition
Circulation CHAPTER FOURTEEN
Circulation CHAPTER FOURTEEN
FIGURE 14-14
Path of blood flow through the entire cardiovascular system. All the structures within the colored box are located in the chest. % Ô
FIGURE 14-14
Path of blood flow through the entire cardiovascular system. All the structures within the colored box are located in the chest. % Ô
Figure 14-14 summarizes the path of blood flow through the entire cardiovascular system.
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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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