Homework Sourse1 Use the following lengthtension curve to answer the questi
1. Use the following length-tension curve to answer the questions below:
a. What is the tension in the resting muscle when it stretched to 49 mm?
b. If the muscle is stretched to 43 mm and then stimulated. What is the total tension generated? What is the tension generated by the contractile elements?
c. If the muscle is pre-loaded with a 4 gram weight, what will be its length? What will be its final length if it is tetanically stimulated and allowed to shorten? How much has the muscle shortened?
d. If a 2 gram weight is hung off the end of the muscle, how far will the muscle shorten when it is tetanically stimulated?
e. If the initial length of the muscle is 45 mm and the muscle is maximally stimulated to lift 6 grams, how much will this muscle shorten? How much work has the muscle performed?
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Solution
A) Expansion and reaches a uttermost tension then goes miserable.
Beginning off with too much shrinkage which make little tension. In time you reach the most favorable repose length which contrast to the prominent amount of pressure. It then bubble off once the muscle is withdraw off too far.
B) Potential to reduce energetic when stimulated - 276.
c) A impermanent L, there is overlap of thin fiber into the division of the thick fiber with no myosin top or cross bridges.
As the distance is enlargement towards Lo better and more feasible cross bridges may be formation, when Lo is a cross limits and then there will be mysoin tops in the middle of the sarcomere.
D) Exterior tension expand as muscle extend -cross bridges are energetic.
