Question

Assertion: Triceps is said to be an extensor muscle for elbow joint.
Reason: Triceps relaxes durings extension of forearm at the elbow joint.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correc explanation of Assertion
C. Assertion is false, but Reason is true
D. Both Assertion and Reason are false

Answer 1

Correct Answer - c
Movement are produced at joints by the contraction of skeletal muscles inserted into articulating bones. The connection of an extensor muscle extends a joint, hence causing extension of the limb. Contraction of triceps brings about the extension of forearm at the elbow joint hence, it is said to be the extensor muscle for elbow joint.