The tone of contraction is related to the amplitude of the stimulus
The tone of contraction is related to the frequency of stimulation
Frequency of contraction is 6 per minute
The threshold of contraction is -50 mV
Ans:B-The tone of contraction is related to the frequency of stimulation
Tone of contraction depends on stimulus frequency rather than amplitude.
Threshold for action potential:
Upto 50 mV (I.e. potential required to trigger an action potential & contraction).
One contraction in 10 seconds implies frequency is 6 contractions/minute.