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A: Latent period is the interval between the application of an appropriate stimulus and the initiation of contraction.
R: Latent period is minimum in cardiac muscle fibres.
  • a)
    If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
  • b)
    If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
  • c)
    If the Assertion is a true statement, but Reason is false.
  • d)
    If both Assertion and Reason are false statements.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A: Latent period is the interval between the application of an appropr...
Cardiac muscles have a long refractory period, so its latent period is minimum.
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Most Upvoted Answer
A: Latent period is the interval between the application of an appropr...

Explanation:

Assertion:
The latent period is the interval between the application of an appropriate stimulus and the initiation of contraction.

Reason:
The latent period is minimum in cardiac muscle fibers.

The correct answer is option 'B', which means that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

Explanation:
- Latent Period Definition: The latent period is the time interval between the application of a stimulus and the beginning of the response in a muscle fiber. It is the time taken for the excitation-contraction coupling process to occur before the muscle actually starts contracting.
- Latent Period in Cardiac Muscle Fibers: While it is true that the latent period is generally shorter in cardiac muscle fibers compared to skeletal muscle fibers, the reason provided does not explain why this is the case. Cardiac muscle fibers have a shorter latent period because they have specialized structures called intercalated discs that allow for rapid conduction of electrical impulses, leading to quicker initiation of contraction.
- Reasoning: The assertion correctly defines the latent period in general terms, and the reason correctly states that the latent period is shorter in cardiac muscle fibers. However, the reason does not directly explain why the latent period is shorter in cardiac muscle fibers, making it an incorrect explanation of the assertion.

In conclusion, the assertion and reason are both true, but the reason does not provide the correct explanation for the assertion.
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A: Latent period is the interval between the application of an appropriate stimulus and the initiation of contraction.R: Latent period is minimum in cardiac muscle fibres.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.c)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'B'. Can you explain this answer?
Question Description
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