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Question : Assertion: Biceps and triceps are antagonistic muscles Reason: The biceps flexes the arm and the tr4iceps straightens the arm.

Answer»

If both assertion and reason are TURE and reason is the corect explanation of assertion
If both assertion and reason are ture but reson is not the correct explanation of assertion
If assertion is true reason is false
If both assertion and reason are false

Solution :Some muscle are arranged in sets of TWO and act in opposition to bring movement. Such muscles are called ANTAGONISTIC muscles. For example, the biceps bends or FLEXES the arm and its antagonist, the triceps straightens or extends the arm.


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