Reflex arcs · Physiology

A reflex arc consists of all of the following components EXCEPT:

  1. Receptor that detects the stimulus
  2. Effector that produces the response
  3. Afferent sensory neuron
  4. Cerebral cortex
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Correct answer: Cerebral cortex

A reflex arc operates without conscious cortical involvement, so the cerebral cortex is not a required component. The basic parts are a receptor, sensory neuron, integration centre, motor neuron, and effector.

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