An organelle is a specialized cellular structure in eukaryotic cells analogous to an organ in the body.Organelles are discrete structures within the cell that perform a specialized function. Most are surrounded by internal membranes and can be seen in the light or the electron microscope.n organelle is a specialized cellular structure in eukaryotic cells analogous to an organ in the body.
irregular pulse or heart palpitations; chest pain; pale skin; sweating; What causes abnormal heart rhythms? A number of things may cause an abnormal heartbeat, including high blood pressure. Other common causes are: Coronary heart disease. This serious heart problem occurs when cholesterol and other deposits block the coronary arteries. Medications
Irregular heartbeats can be normally present or as a result of cardiac disorder.In a normal person also sometimes there may arise an irregular beat unknowingly. Get a routine echo cardiogram done, to confirm that you often have irregular heartbeats. If irregular heartbeats are fast than normal that too occasionally then it could be a cause of worry. Usually an irregular beats are result of an arrhythmic impulse generated in muscles from which is apart from normally occurring impulses.