Match the following parts of an EKG with what part of the heartbeat t.pdf

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Match the following parts of an EKG with what part of the heartbeat they mark. Interval between QRS & T waves QRS wave P Wave T Wave Interval between P & QRS waves Match the following techniques with what they measure. Auscultation Electrocardiogram (EKG) Sphygmomanometer Volume Pulse Recording Solution QRS WAVE - Ventricular depolarisation P Wave - atrial depolarisation T Wave - Ventricular repolarisation The first deflection, the P wave, corresponds to current flows during atrial depolarisation. The second deflection, the QRS complex, occurring approximately 0.15 s later, is the result of ventricular depolarisation. It is a complex deflection because the paths taken by the wave of depolarisation through the thick ventricular walls differ from instant to instant, and the currents generated in the body fluids change direction accordingly. The final deflection, the T wave, is a result of ventricular repolarisation. Ausculation : Ausculation is the process of listening to sounds. Direct method uses only the ear while the indirect method uses stethoscope to hear the sounds. Electrocardiogram : Electrocardiogram is primarily a tool for evaluating the electrical events within the heart. The action potentials of cardiac muscle cells can be viewed as batteries that cause charge to move throughout the body fluids. These moving charges represent the sum of the action potentials occurring simultaneously in many individual cells and can be detected by recroording electrodes at the surface of the skin. Sphygmomanometer : Sphygmomanometer is a device used to measure the blood pressure in the arteries. Volume pulse recording : Recording of the segmental flowing of blood in the limb as a result of changes in the blood volume during cardiac cycle..

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