Figure 1413

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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

Path Blood Through Body

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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