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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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needhelp87 needhelp87
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10 years ago
Please help I am stuck on these two questions located on p.30 physioex 9.0 activity 3
4.To achieve an active force of 5.2g , did you have to increase the stimulus voltage about 8.5 volts? if not, how did you achieve an active force of 5.2g? how well did the results compare with your prediction?
5.compare and contrast frequency-dependent wave summation with motor unit recruitment.how was each achieved in this experiment? explain how each is achieved in vivo?
Source  Physio Ex 9.0 p.30 review sheet activity 3
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10 years ago
Quote from: needhelp87 (10 years ago)
5.compare and contrast frequency-dependent wave summation with motor unit recruitment.how was each achieved in this experiment? explain how each is achieved in vivo?

Frequency-dependent wave summation is dependent upon stimulation by the nervous system. The motor recruitment depends upon the number of motor fibers available.

Quote from: needhelp87 (10 years ago)
4.To achieve an active force of 5.2g , did you have to increase the stimulus voltage about 8.5 volts? if not, how did you achieve an active force of 5.2g? how well did the results compare with your prediction?

Yes, it was necessary to increase the voltage above 8.5 volts to achieve the active force of 5.2 grams.
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needhelp87 Author
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10 years ago

Thank you for your time and help, I am really grateful! Slight Smile
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10 years ago
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