A crossed-extensor reflex demonstrates double reciprocal innervation.

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A crossed-extensor reflex involves the activation of both flexor and extensor muscles in response to a painful stimulus. This reflex demonstrates double reciprocal innervation, where the sensory neuron that detects the painful stimulus activates both the motor neuron that innervates the flexor muscle and the motor neuron that innervates the extensor muscle on the opposite side of the body. This coordination of muscle activity is necessary for maintaining balance and stability during a painful or unexpected event.

A Crossed-Extensor Reflex Demonstrates Double Reciprocal Innervation