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What does the relative refractory period of a t wave represent?
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What is a T-wave?
The T wave represents the repolarization (or recovery) of the ventricles. The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the absolute refractory period. The last half of the T wave is referred to as the relative refractory period (or vulnerable period). The T wave contains more information then the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the TpeakTend interval. In most leads, the T wave is positive. However, a negative T wave is normal in lead aVR. Lead V1 may have a positive, negative, or biphasic T wave. In addition, it is not uncommon to have an isolated negative T wave in lead 3, aVL, or aVF.
Which wave properties are relative to time?
Frequency Velocity and Period.
What happens immediately after the QRS wave of the cardiac cycle?
There are a number of things that may happen during the QRS wave. There will be ventricular depolarization and right after absolute refractory period for ventricles will occur.
WHAT wave can represent a radio wave?
A radio
What would happen if a nerve fiber was stimulated from both ends simultaneously?
The neural activity progresses as if it were a wave (the effect moves but the nerve, of course does not). As the wave progresses it depolarizes the nerve surface, opens Na+ channels and activates the nerve surface as it goes forward. One effect of the firing however is that the Na+ channels inactivate and enter a refractory period in which they will not reopen. This essential drives the propagation wave in one direction only. If the nerve were to be simultaneously stimulated at both ends the two waves would meet and then activity would cease. Neither wave would be able to overcome the refractory membrane that the other wave had passed over.
The time it takes two successive crests of an ocean wave to pass a given point is called a?
A wave length.
What is the reciprical of the period of a sound wave?
The reciprocal of the period of ANY wave is the wave's frequency.
If a radio wave has a period of 1 us what is the waves period in seconds?
If a radio wave has a period of one then the period wave or two would be 2. This is math.
Which direction is the particle motion in shear waves relative to the energy of the wave?
The particle motion in shear waves relative to the energy of the wave is downward.
What is the Doppler efect?
A change of frequence in a wave (usually in a sound, or electromagnetic wave), due to the relative movement between the source of the sound and an observer.A change of frequence in a wave (usually in a sound, or electromagnetic wave), due to the relative movement between the source of the sound and an observer.A change of frequence in a wave (usually in a sound, or electromagnetic wave), due to the relative movement between the source of the sound and an observer.A change of frequence in a wave (usually in a sound, or electromagnetic wave), due to the relative movement between the source of the sound and an observer.
How do wave frequency and period of a wave relate?
Wave frequency f, and period of wave T are inverses, related by fT=1.
How does wave speed relate to wavelength and period?
Wave speed = (wavelength)/(period)
