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During muscle contraction...

During muscle contraction

A

Surcomere does not shorten

B

A band remains same

C

A, H and I bands shorten

D

actin filaments shorten

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The correct Answer is:
B
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Which of the following statements about the mechanism of muscle contraction are correct ? (i) Acetylcholine is released when the neural signal reaches the motor end plate. (ii)Muscle contraction is initiated by a signal sent by CNS via sensory neuron. (iii) During muscle contraction, isotropic band gets elongated (iv) Repeated activation of the muscles can lead to lactic acid accumulation.

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Which of the following is incorrect regarding muscle contraction?

The role of calcium in muscle contraction is :

Following muscle contraction in response to a stimulus, the muscle temporarily cannot respond. This is known as:

Define the following : Threshold stimulus in muscle contraction

Which is true for muscle contraction :-

AAKASH SERIES-LOCOMOTION AND MOVEMENT-EXERCISE -III(PREVIOUS AIPMT/NEET QUESTIONS)
  1. Which of the following joints would allow to movement?

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  2. Sliding filament theory can be best explained as

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  3. Glenoid cavity articulates

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  4. Select the correct matching of the type of the joint with the example ...

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  5. Stimulation of a muscle fiber by a motor neu- ron occurs at

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  6. Select the correct statement with respect to locomotion in humans

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  7. The H-zone in the skeletal muscle fibre is dueto

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  8. The characteristics and an example of a synovial joint in humans is

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  9. During muscle contraction

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  10. Select the correct statement with respect to disorders of muscles in h...

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  11. Select the correct statement regarding the specific disorder of muscul...

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  12. Which one of the following pairs of chemical substance is correctly ca...

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  13. The type of muscle present in our

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  14. Three of the following paris of the human skeletal parts are correctly...

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  15. Which one of the following pairs of structure is correctly matches wit...

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  16. Which one of the following is correct description of a certain part of...

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  17. Wich one of the following is the correct matching of three items and t...

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  18. Elbow joint is

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  19. Which one of the following items gives its correct total number?

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  20. In human body, which one of the following is anatomicall correct?

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