The cardiovascular system includes the heart and the blood vessels by which blood is pumped and circulated throgh the body. Cardiovascular diseases describe pathological conditions involving the cardiovascular system, including the heart, blood vessels or the pericardium. Description adapted from: https://www.ncbi.nlm.nih.gov/mesh/68002319 & https://www.ncbi.nlm.nih.gov/mesh/68002318.