External structure of human heart shows its conical shape with apex facing downwards and the broad base directed upwards. It is enclosed in double layered, transparent, thin sac called "Pericardium" . The space between the inner and outer layers is called Pericardial space, it is filled with pericardial fluid. Pericardium and pericardial fluid protect the heart from physical shocks. Now lets start drawing the diagram. 1.Draw a oblique line from Right to Left 2.Draw a cone shape as shown in…