What is a wave in medical term?
[wāv] 1. a uniformly advancing disturbance in which the parts undergo a change in direction, such as a progressing disturbance on the surface of a liquid.
What are the types of soundwave?
longitudinal waves
Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.
What does shock wave mean in medical terms?
shock wave A compression wave produced by a shock such as an earthquake or explosion that is characterized by a sudden change in air pressure, density, and velocity. 2. An electromagnetic or sonic shock wave focused at a specific target (e.g., within the body). 3. A sudden disruption.
What is a lightwave?
light wave in British English or lightwave (ˈlaɪtˌweɪv ) noun. the movement of light conceptualized as a wave, defined by such properties as reflection, refraction, and dispersion.
What is another name for transverse waves?
Hence a transverse wave of this nature is called a shear wave. Since fluids cannot resist shear forces while at rest, propagation of transverse waves inside the bulk of fluids is not possible. In seismology, shear waves are also called secondary waves or S-waves.
What is the U wave on an ECG?
In the electrocardiogram (ECG) the U wave is the deflection that follows the waves of depolarization (QRS) and repolarization (T) of the heart chambers. Its polarity is normally the same as that of the T wave.
What is soft wave?
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What does ESWL stand for?
The introduction of extracorporeal shock wave lithotripsy (ESWL) in the early 1980s revolutionized the treatment of patients with stones in the kidneys, ureter (the duct between the kidney and the bladder), pancreatic duct and bile ducts.
What does a mechanical wave?
A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.
What is longitudinal and transverse wave?
Transverse waves cause the medium to move perpendicular to the direction of the wave. Longitudinal waves cause the medium to move parallel to the direction of the wave.
What does extra T wave mean?
Tall T-waves (also called hyper-acute T waves) can be an early sign of ST-elevation myocardial infarction. The morphology of the T waves can begin to broaden and peak within 30 minutes of complete coronary artery occlusion, and thus may be the earliest sign of myocardial infarction on the EKG.
What causes Au wave?
The ‘U’ wave is a wave on an electrocardiogram (ECG). It comes after the T wave of ventricular repolarization and may not always be observed as a result of its small size. ‘U’ waves are thought to represent repolarization of the Purkinje fibers.
What are waves?
Quantum Microscope About Waves Understanding Waves Energy is the motion of the aether, which travels as waves. Waves may change type and form, or their amplitudes may be additive or subtractive when combined with other waves, but in all cases energy will always be conserved. Types of Waves
What are the two types of mechanical waves?
There are two types of mechanical waves: Longitudinal waves – In this type of wave, the movement of the particle are parallel to the motion of the energy i.e. the displacement of the medium is in the same direction to which the wave is moving.
What are the characteristics of different types of waves?
Different types of waves have different set of characteristics. Longitudinal waves – In this type of wave, the movement of the particle are parallel to the motion of the energy i.e. the displacement of the medium is in the same direction to which the wave is moving. Example – Sound Waves, Pressure Waves.
What is the frequency of the waveforms?
Recognizing the frequency of the waveforms is fundamental to interpreting EEG. Frequency describes how many waves there are per second, and is measured in hertz (Hz). There are four main frequencies of the human brain seen on scalp EEG, in increasing order: delta, theta, alpha and beta.