This document provides an overview of heart sounds and murmurs. It discusses the basics of heart sounds and where they are most audible. It describes different types of cardiovascular system anomalies and abnormalities, including structural defects, functional defects, and positional defects. It then focuses on innocent murmurs versus pathological murmurs, describing the characteristics of each. It provides details on specific murmurs associated with conditions like aortic stenosis, mitral regurgitation, aortic regurgitation, and mitral stenosis. It also briefly discusses continuous murmurs.