Simple Pharmanotes

Heart is a hollow muscular organ located in chest region with main function to pump the blood. Its an organ of circulatory system and normal adult male heart weighs around 300 grams. It is made up of specialized muscle cells called as “Cardiac Muscles”. Anatomy of Heart: Upper most covering of heart is called as “ Pericardium ”, the cardiac muscle layer is called as “ Myocardium ” while innermost heart layer is “ Endocardium . Heart has four chambers upper two are called as right and left atriums while lower two are called as right and left ventricles . Atriums are separated from each other by “ interatrial septum ”. Atriums are separated from ventricles by “ Atrioventricular septum ”. Ventricles are separated from each other by “ Interventricular septum ”. Blood supply to heart itself is goes through a tiny artery called as “ Coronary Artery ”. Heart is supplied with rich supply of nerves as follows, Vagus Nerve: It provides “Parasympathetic Communication”  to hea