Phasic receptor. A phasic receptor is a sensory receptor that returns to its resting potential even though the stimulus is still applied. The process by which the magnitude of the generator potential decreases, even when the stimulus is maintained, is called adaptation. 1  Pacinian corpuscles. 2  Tonic receptor. 3  Phasic transmitter.
The normal resting adult heart beats regularly at an average rate of 60-100 times per minute. How fast the heart beats (heart rate) is governed by the speed of electrical signals originating from the pacemaker of the heart, the SA node.
most adults have a resting heart rate of 60 100 beats per minute bpm the fitter you are the lower your resting heart rate is likely to be for example athletes may have a resting heart rate of 40 60 bpm or lowerost adults have a resting heart rate of 60 100 beats per minute bpm the fitter you are the lower your resting heart rate is likely to be for example athletes may have a resting heart rate of 40 60 bpm or lower