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 of the time, your heart beats in a regular rhythm. For most adults, the normal resting heart rate is between 60 to 100 beats per minute. But sometimes your heart can beat at a rate above 100 beats per minute.This is called tachycardia.or most adults, the normal resting heart rate is between 60 to 100 beats per minute. But sometimes your heart can beat at a rate above 100 beats per minute.