15) Spinal interneurons prevent muscle antagonists from interfering with an intended movement by A) the process of reciprocal inhibition. 15) B) initiating a crossed extensor reflex. C) initiating a tendon reflex. D) activating reverberating circuits. E) initiating a stretch reflex.

A. The process of reciprocal inhibition.

Explanation:

In our body, not all the muscles contract and relax simultaneously. The muscle supporting certain reflex are contracted while the others need to be relaxed at that time. In the process of reciprocal inhibition, when a message of contraction is sent by the central nervous system to the agonist muscles, the tension in the antagonist muscles is inhibited by the impulses from the spinal interneurons so that the antagonist muscles get relaxed simultaneously and the reflex action can be completed without causing any damage to our muscular system. If both agonist and antagonist muscles will contract and relax simultaneously, there may be tear in the muscles that's why reciprocal inhibition is a important phenomena occurring in our body.

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