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The stiffness of the body after death is...

The stiffness of the body after death is due to which phenomenon.

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**Step-by-Step Text Solution:** 1. **Understanding Rigor Mortis**: The stiffness of the body after death is referred to as rigor mortis, which is also known as post-mortem stiffness. This phenomenon occurs in all animals after death. 2. **Decrease in ATP Levels**: Rigor mortis is primarily caused by a significant decrease in adenosine triphosphate (ATP) levels in the muscle cells. ATP is crucial for muscle function, particularly for muscle relaxation. 3. **Calcium Ion Movement**: After death, calcium ions flood into the muscle fibers. This influx of calcium ions is a critical factor that leads to muscle contraction. ...
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ICSE-LOCOMOTION AND MOVEMENT-REVIEW QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS WITH ANSWER)
  1. What is the function of Tropomyosin?

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  2. What is troponin and where is it present?

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  3. What is meromyosin?

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  4. Which part of myosin is an active ATP ase enzyme?

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  5. Where are cross bridges present?

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  6. Which mineral ions are important for muscle contraction?

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  7. According to sliding filament theory, which band/ zone does not change...

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  8. What is creatin phosphate, where is it present?

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  9. Give an example of antigonistic muscles.

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  10. If the strength of stimulus is more than the threshold, what happens t...

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  11. Is the force contraction of muscle fibre dependent on the strength of ...

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  12. What is a threshold stimulus?

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  13. When a muscle is a continued state of contraction , what is it called?

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  14. Which chemical accumulates in a fatigued muslce?

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  15. If a muscle is in a continued state of contraction, what is it called?

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  16. The stiffness of the body after death is due to which phenomenon.

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  17. When does rigor mortis begin after death?

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  18. Which muscle fibres red or white are capable of slow contractions over...

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  19. What kind of muscles are capable of fast contraction with short interv...

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  20. Name the type of joint between the following: (a) atlas/axis (...

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