Assertion: Human heart is called myogenic. Reason: The nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is autoexcitable and is responsible for maintaining the rhythmic contractile activity of the heart.
- AAssertion and reason both are true and the reason is correct explanation of assertion.
- BAssertion and reason both are true but reason is not correct explanation of assertion.
- CAssertion is true but reason is wrong.
- DAssertion and reason both are wrong.
✓ Correct answer: A
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