Fig. 4.1 The circulatory system, showing the pathway for blood flow. (Sources of images below. Used with permission.)

         

 

 

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Sources of images. Used with permission.

https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/2003_Dual_System_of_Human_Circulation.jpg/543px-2003_Dual_System_of_Human_Circulation.jpg

https://commons.wikimedia.org/wiki/File:2003_Dual_System_of_Human_Circulation.jpg

Description Illustration from Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013.

Source         Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013.

Author         OpenStax College