Biology
Assertion (A): Cardiac muscles are striated, uninucleated and branched. Cells are relatively short and located in the muscles of the heart.
Reason (R): Cardiac muscles can contract without outside stimulation and do not get tired easily.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Tissues
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Answer
Both A and R are true but R is not the correct explanation of A.
Reason — A is true as cardiac muscles are striated, uninucleated and branched. They are found only in the heart.
R is true as cardiac muscles can contract without external nerve stimulation. They work continuously without getting tired. But the reason does not explain the structural features mentioned in the assertion.
Therefore, Both A and R are true but R is not the correct explanation of A is the correct option.
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