tag:blogger.com,1999:blog-12718302413440237542011-09-21T04:11:33.653-07:00Judy Walterhttp://www.blogger.com/profile/07823028459631663544noreply@blogger.comBlogger11100tag:blogger.com,1999:blog-1271830241344023754.post-52104910310140648242011-09-21T04:11:00.001-07:002011-09-21T04:11:33.663-07:00<div dir="ltr" style="text-align: left;" trbidi="on">Systemic circulation is the part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart. This physiologic theory of circulation was first described by William Harvey. This term is opposed and contrasted to the term pulmonary circulation first proposed by Ibn al-Nafis.</div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/1271830241344023754-5210491031014064824?l=systemicallyimportant.blogspot.com' alt='' /></div>Judy Walterhttp://www.blogger.com/profile/07823028459631663544noreply@blogger.com0