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Biology-Related Homework Help Anatomy and Physiology Topic started by: trin on Feb 27, 2012



Title: Physioex 9.0 Activity 6
Post by: trin on Feb 27, 2012
1. why are multiple action potentials generated in response to a long stimulus that is above threshold? Does it have to do with graded potentials?

2.what is the threshold relationship between the interspike interval and the frequency of action potentials. Cannot find this in the text anywhere.



Title: Re: Physioex 9.0 Activity 6
Post by: bio_man on Feb 27, 2012
1. why are multiple action potentials generated in response to a long stimulus that is above threshold? Does it have to do with graded potentials?

The longer stimuli allow time for recovery and the above threshold allows the action potential to occur after the relative refractory period.


Title: Re: Physioex 9.0 Activity 6
Post by: bio_man on Feb 27, 2012
2.what is the threshold relationship between the interspike interval and the frequency of action potentials. Cannot find this in the text anywhere.

The frequency of the action potentials is the reciprocal of the interspike interval with a conversion from milliseconds to seconds.


Title: Re: Physioex 9.0 Activity 6
Post by: trin on Feb 28, 2012
Thank you soooo much!!!