In a reflex arc, which component carries impulses from the integration center to the effector?

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Study for the Neurophysiology Test with flashcards and multiple choice questions, each with hints and explanations. Enhance your understanding of cell types, signals, and sensory pathways. Ace your exam!

Multiple Choice

In a reflex arc, which component carries impulses from the integration center to the effector?

Explanation:
In a reflex arc, information flows from receptor to sensory neuron to an integration center, where the signal is processed, and then a command is sent out to the effector. The component that carries that command from the integration center to the effector is the motor neuron. It transmits the signal from the CNS to the muscle or gland that responds, triggering contraction or secretion. The receptor and sensory neuron handle sensing and delivering the stimulus to the CNS, while the integration center processes the input; neither directly delivers the command to the effector.

In a reflex arc, information flows from receptor to sensory neuron to an integration center, where the signal is processed, and then a command is sent out to the effector. The component that carries that command from the integration center to the effector is the motor neuron. It transmits the signal from the CNS to the muscle or gland that responds, triggering contraction or secretion. The receptor and sensory neuron handle sensing and delivering the stimulus to the CNS, while the integration center processes the input; neither directly delivers the command to the effector.

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