Sliding Filament Theory
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The sliding filament theory of muscle contraction is probably one of the most difficult physiological concepts to grasp in BIO 141. The purpose of this discussion board is to assist students with their understanding of how skeletal muscle contracts by writing about and discussing the topic.
For the initial post, please explain in your own words your understanding of the sliding filament theory beginning from when the calcium is released from SR until the sarcomere actually shortens. Be use to include all of the protein filaments and their role in the contraction. Also, is there anything that you are having difficulty understanding? If you have questions, ask them.
