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LAD (left anterior descending coronary artery) is usually the largest branch of the left main coronary artery which supplies the major portion of the left ventricle. Hence occlusion of LAD (widow maker artery) can cause extensive myocardial infarction (heart attack) which can sometimes be fatal. Hence the term widow maker artery for left anterior descending coronary artery. LAD supplies the front region of the left ventricle known as the anterior wall and the interventricular septum (partition between two ventricles. When the LAD is blocked at its origin, the resulting large anterior wall infarction can produce significant loss of pumping function of the heart. Moreover they are also prone for heart rhythm disturbances early and late in the course, which can cause sudden cardiac death.
MCQs in Medicine - Cardiovascular System is based on undergraduate medical curriculum. Though the questions are aimed at basic post graduate entrance examinations, candidates taking competitive exams at the post graduate exit level may also find them useful, especially the explanations for the answers. Undergraduate medical students will find them useful for answering MCQ tests in their regular exams. More than just answering MCQs, the explanations will improve the knowledge and understanding about the conditions discussed.Medicine MCQs - Cardiovascular System Kindle Edition: Click Here for a Preview
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