Which Best Describes an Event That Occurs as Part of the Crossed-Extensor

question 42

Multiple Choice

Which best describes an event that occurs as part of the crossed-extensor reflex?

• A)It is initiated by a painful stimulus in the ipsilateral limb.
• B) It stimulates contraction of the contralateral extensor and inhibits contraction of the contralateral flexor.
• C)It is initiated by stretch in the ipsilateral extensor muscle.
• D)Inhibitory interneurons are activated,which synapse onto contralateral extensor muscles.
• E)Monosynaptic excitatory stimulation of ipsilateral extensor muscles occurs.

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