Home | dartmouth-hitchcock | geisel school of medicine | careers | site map | myd-h about us | focus | news | events | locations & directions | contact us norris cotton cancer center a national cancer institute comprehensive cancer center   patients & families health care professionals researchers donors & volunteers employees   health encyclopedia   cancer care cancer care by type of cancer cancer care programs in alphabetical order clinical trials get a second opinion focus on cancer care support & well-being support groups / education patient & family support services palliative care survivor program shared decision making patient care organizer find a doctor preventing cancer protect yourself from the sun do not use tobacco maintain a healthy weight & be active find it early (get screened) sunsafe programs focus on preventing cancer patient stories "life after cancer" podcasts breast cancer donation of blood stem cells hemophilia leukemia neck cancer all patient stories share your comments health encyclopedia   home patients & families health encyclopedia   topic contents topic overview related information credits heart valve disease topic overview heart valve disease is the term used for a number of conditions that affect the four valves of the heart. generic viagra au canada The best way to understand heart valve disease is to first understand how the heart works. cheap viagra eu How does the heart pump blood? cheap viagra Your heart is divided into two separate pumping systems—right and left: the right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs to take up fresh oxygen. canadian no prescription viagra The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to your body. erectile dysfunction medication viagra Your heart has four separate chambers that pump blood—two on the right side and two on the left side: right atrium right ventricle left atrium left ventricle blood travels through your heart and lungs in four steps. viagra online In each step, it must pass through a valve. canada pharmacy viagra Step 1: the right atrium receives oxygen-poor blood from the body and pumps it through the tricuspid valve to the right ventricle. generic viagra Step 2: the right ventricle pumps the oxygen-poor blood through the pulmonary valve to the lungs. Step 3: the left at. happens women take mens viagra viagra daily for sale
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