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Exercise 1: Properties of a Finger Twitch.Question:How does the contraction time of a typical finger twitch compare to the relaxation time?
Exercise 2: The Effect of Weight on Finger Twitches.Questions:1- Discuss how do the amplitudes of the finger twitches with different weights compare to each other?2- Explain why did the amount of work decrease when heavier weights were used?3- Is there any correlation between the weight moved and the contraction or relaxation times of the twitches?
Exercise 3: Stimulus-Response.Questions:1- At which stimulus current did the finger first show a twitch? Why didn't a finger twitch occur at a lower stimulus current?2- How does the finger twitch amplitude increase when the stimulus current is increased?3- Is there a stimulus current at which the amplitude of the finger twitch is maximized?4- Above a certain stimulus current, the amplitude of the finger twitch no longer increases. Why does this happen?
Exercise 4: Summation and Tetanus.Questions:1- At which frequency did summation first appear? At which frequencies does incomplete tetanus occur? At which frequency did complete tetanus first occur?2- How much greater than the amplitude of a single twitch is the amplitude of the tallest twitch during summation or incomplete tetanus?3- How much greater than the amplitude of a single twitch is the amplitude of complete tetanus?4- After the stimulator is turned off, the relaxation time after tetanus is much longer than relaxation time after a single twitch. Why?5- What is the name for the decrease in the level of constant tension that occurs during tetanus?
The digastric and omohyoid muscles are similar in that they both have________. Suprahyoid, Two bellies, 60
If given this in this sequence to find surface area, 1 cm x 2 cm x 2 cm block, am I to assume it is written in LxWxH format?
What specific effects might these toxins have on neuron function. How various plants of each of the four phenotypes do you expect.
Recognize and discuss three problems faced by conservation biologists working with small populations that are separated from each other in fragmented habitats.
What effect do you think EBV would have on B cell function. What phenotypes would you expect in the F2, and in what actual numbers (not ratios) will you expect to find out them.
What enzymatic activity does a reverse transcriptase perform? State the name of the human reverse transcriptase? Where on chromosomes does it function?
A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When train arrives in Madison the conductor notices it actually took them 3.26 hours.
A certain gene consists of 450 nucleotide pairs.How various codons make the 150 residues.
Elucidate results of all four crosses, using clearly defined gene symbols. describe origin of both of the original prototrophic colonies.
Propose a hypothesis to explain the current decline in Songbird numbers. Design an experiment that could test your hypothesis.
In modern blimps, the gas of choice used to inflate them is helium rather than hydrogen. Hydrogen would be lighter, but helium is safer. Discuss similarities and differences of the atomic structure of hydrogen and helium.
Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous.
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