REVISED ilab worksheet for WEEK 1: Muscle Contraction
Using the results of your ilab experiment, enthral answer the following questions completely.
Submit this homework assignment to the week 1 Dropbox.
1. In the experiment, something happens to the force of contraction of a ponderosity when the stimulus frequency interpolates. skunk you explain this kin and why it happens? The force of contraction is increased when the stimulus frequency changes. The consanguinity is that the stimulus effects the contraction.
2. In the experiment, something happens to the force of contraction of a brawn when the stimulus voltage changes. Can you explain this relationship and why it happens? The force of contraction was only affect by the voltage when it reached 400 and 500mv. The relationship is the dependent is only affected by the independent variable only at 400mv and higher.
3. Does the sarcomere change length during the development of a muscle contraction? How does it enumerate in a supreme contraction? (Be sure to have words about the myofilaments) Yes, the sarcomere does change lengths during the development of muscle contraction.
In maximal contraction the sarcomere shortens and the myofilaments change from side by side to overlapping.
4. Can you explain if there an optimal length of a muscle cell that enables it to produce a maximum contraction?
The optimal length of a muscle cell is 8.0-9.0mm where the force increases thusly decreases after 9.0.
5. Botulinum toxin is found in BOTOX. People seize injections of this to reduce the appearance of their facial wrinkle. Can you explain how this nerve center works ? Botox prevents the release of chemical transmitters that activate muscles in the superficial facial muscles. This weakens the muscles.If you want to get a rise essay, order it on our website: Ordercustompaper.com
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