Put the steps of excitation-contraction in order: 1 Myosin "heads" pivot, cause [ Choose ] Calcium is taken back up and the muscle relaxes Action potential triggers Ca2+ release from sarcoplasmic reticulum ACh produces large EPSP in muscle fiber Muscle contracts Binding of Ca2+ to troponin causes myosin to bind to actin 5. EPSP evokes muscle action potential 6. Alpha motor neurons release ACh Myosin "heads" pivot, cause filaments to walk along filament [Choose] 8. [Choose ] 2. 3. 4.

Q: true or false 6. Muscle cells are mesenchymal in origin. 7. Myomesin binds to titin molecules and…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: When an individual sarcomere undergo contraction, which of the following happens? H band and I band…

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Q: Which of the following does not occur during muscle contraction? Release of calcium into sarcoplasm…

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Q: Arrange the steps of muscle contraction in the correct order Myosin head forms cross bridge with…

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Q: the given below option what step causes a sarcomere to shorten? cross-bridge formation  calcium…

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Q: During contraction, the bulk of calcium comes from:   A. sarcomere   B. sarcoplasm…

A: There are two questions. One question has been answered. To get the answer for the other question,…

Q: Which of the following choices is CORRECT? A Myofibrils extend the length of a muscle fibre B.…

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Q: For relaxation to occur, A. calcium leaves the sarcoplasmic reticulum, and troponin binds calcium…

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Q: The decrease in active force that occurs at lengths longer than the optimal length is caused by: O…

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Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

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A: Answer is option e.

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A: Correct option: b) Actin, -sarcomere, -Myofibril, -Muscle Fibre

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A: Please follow step 2 & 3 for detailed explanation.

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.