This is a comprehensive video to deal with three important concepts related with circulation. In the first segment of the video, a general overview of blood circulation is given. The difference in pressures in different parts of body is explained. Flow and total body resistance are also simplified. Timeline 0:00 Introduction 0:04 Overview of route of blood flow 1:57 Pressure on different points of circulatory system 4:21 Flow 8:44 Total body resistance