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.
Normal Heart Rate Ranges. The normal heart rate for adults generally ranges from 60 to 100 beats per minute. This means your heart normally beats one to two times per second.Calculate your resting heart rate by placing your index and middle fingers on your neck to the side of your windpipe.ormal Heart Rate Ranges. The normal heart rate for adults generally ranges from 60 to 100 beats per minute. This means your heart normally beats one to two times per second.