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Eboni Algee REVISED ilab worksheet for WEEK 1: Muscle Contraction using the results of your ilab experiment, enthral answer the following questions completely. Submit this homework subsidisation to the week 1 Dropbox. 1. In the experiment, something happens to the force of ponderosity abridgement of a ponderosity when the stimulus frequence interpolates. skunk you formulate this kinsperson 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. lav you explain this relationship and why it happens? The force of contraction was but strickle 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 distance during the development of a muscle contraction? How does it enumerate in a supreme contraction? (Be received 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 cellular phone that enables it to produce a upper limit 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 i s 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 stop of chemical transmitters that activate muscles in the superficial facial muscles. This weakens the muscles.If you motivation to get a rise essay, order it on our website: BestEssayCheap.com

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