Medical Study

Cardiovascular System  Cardiovascular system is consist of heart, blood and blood vessels. The main function of heart is to pump the blood to all body parts. Blood is vital fluid-carrying essential nutrients to the body. Heart receive blood from body by inferior and superior vena cava comes from veins. It then goes to lungs from left ventricle for oxygenation of blood. From lungs, two pairs of pulmonary artery provide blood to left atrium which is oxygen-rich. Left ventricle pump blood to all body parts. Body receives blood using oxygen and nutrients from the blood. It then enter in veins go again in heart. Heart is main organ of the cardiovascular system. Blood is pump out from heart via aorta to various blood vessels of the body. Structure and location of heart Heart is located in between the lung space called mediastinum. The size of heart is of ones fist of approx. 12 cm long, 9 cm in broad and 6 cm thick. It is of cone shaped directly towards in lungs.  ...

Arrhythmia  Arrhythmia is define as production of abnormal heartbeat, either too slow or too fast or constantly fluctuating heartbeat. Increase in heartbeat is called tachycardia and decrease heartbeat is called as bradycardia. Causes of Arrhythmia  Arrhythmia causes are, SA node abnormality  SA node (Sinoatrial node) is located near the right atrium which function as to generate electrical impulse. When SA node abnormally generate electrical impulses abnormal heart beat generate. Structural changes in heart Any deviation from normal structure of the heart, during surgical procedures or accident, chest trauma. Alteration in heart muscles result in arrhythmia. Heart muscle weakness  Heart muscle actually pump blood. Weak muscle of the heart fail to pump and respond to the active electrical stimulus. It result in slow heart beat. AV node dysfunction  AV (atrioventricular node) is present between the intraventricular septum. It...