Summary Drugs used in Cardiovascular system

Drugs used in Cardiovascular system CV System Physiology Blood flows through a network of blood vessels that extend between the heart and peripheral tissues. These blood vessels can be subdivided into 1.a pulmonary circuit 2.a systemic circuit Electrophysiology Two types of cardiac muscle cells are involved in a normal heart beat: •contractile cells, which produce the contractions that pump blood •specialized muscle cells of the conducting system that control and coordinate the activities of the contractile muscle cells. The conducting system consists of 1.The sinoatrial (SA) node, located in the wall of the right atrium. 2.The atrioventricular (AV) node, located at the junction between the atria and ventricles. 3.The conducting cells, which interconnect the two nodes and distribute the contractile stimulus throughout the myocardium. Drugs used in treatment of angina pectoris Angina pectoris is a characteristic sudden severe chest pain Caused by insufficient coronary blood flow to meet oxygen demands of the myocardium. Typically lasts for seconds to minutes, up to 15 minutes. Anti anginal drugs _ Nitrates _ Calcium _ channel blockers Beta blockers Nitrates Nitrates