Sound waves are used to create pictures of your heart as it beats. An ECG records the electrical activity of your heart. It may be used to check for heart damage from a heart attack or problems with the way electrical signals travel through your heart. You may be asked to walk on a ...
What is sinus rhythm in an ECG? What are cardiology Q waves? What are septal Q waves? What heart rhythm has no P wave? What is a ventricular myocardium? What is cardiac afterload? What is ventricular fibrillation? What is atrial fibrillation? What is a retrograde P wave? What is the QR...
What are pathological Q waves? What is a surface acoustic wave? What is a retrograde P wave? What is the T wave in an ECG? What are septal Q waves? What do analog waves look like? What is anemometer? What is diffraction? What type of wave is ultrasound?
Fig. 1: Schematic representation of the heart’s action: The heart expels the blood by contracting intermittently. As a result, the blood does not flow evenly through the vessels, but in waves that can be felt as a pulse. The pulse occurs in the arterial and venous parts of the vascular...
An EKG or ECG records the electrical activity of your heart. It may show abnormal heartbeats or signals from changes to the heart muscle. A chest x-ray will show enlarged ventricles or a large left atrium. An echocardiogram is a type of ultrasound. Sound waves are used to show the ...
The waves or deflections shown on the ECG are named for the letters P, Q, R, S and T. R waves are the first upward deflection within a series known as the QRS complex. As part of the QRS complex, an R wave is an important indicator of cardiac health. Cardiologists and other ...
Echocardiography is a type of sonar that uses sound waves to bounce off walls and valves, creating an image of the heart as it beats. The movements of the ventricular walls are compared during stress and at rest. Wall motion drops during stress if the coronary artery supplying that part of...
1. Electrocardiography (ECG, EKG) ECG records the electrical activity generated by heart muscle depolarizations (a negative change in the electric charge), which propagates as pulsating electrical waves towardsthe skin. Although the amount of electricity is in fact very small, it can be picked up...
What are S waves? What do all waves have in common? What are body waves? What are transverse waves used for? What are primary waves? What are secondary waves? What is the trough of a wave? What is a tidal wave? What is the wave speed?
Here, the definition of a wave is explored. Different types of waves, and the anatomy of a wave are investigated, and examples of waves are provided. Related to this Question What are waves? What are S waves? What are primary waves?