Carries impulse to the CNS

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Study for the Leaving Certificate Biology Test. Prepare with flashcards and multiple-choice questions. Each question includes hints and explanations to enhance learning. Get ready to excel in your exam!

Multiple Choice

Carries impulse to the CNS

Explanation:
Sensory neurons are designed to carry impulses toward the central nervous system. They take signals from sensory receptors—like those in the skin, eyes, or ears—and transmit them as electrical impulses up to the brain or spinal cord for processing. This direction of flow is called afferent transmission. In contrast, motor neurons send impulses away from the CNS to muscles or glands to trigger responses, and interneurons operate inside the CNS to connect other neurons. Because the statement describes signals moving toward the CNS, it points to sensory neurons.

Sensory neurons are designed to carry impulses toward the central nervous system. They take signals from sensory receptors—like those in the skin, eyes, or ears—and transmit them as electrical impulses up to the brain or spinal cord for processing. This direction of flow is called afferent transmission. In contrast, motor neurons send impulses away from the CNS to muscles or glands to trigger responses, and interneurons operate inside the CNS to connect other neurons. Because the statement describes signals moving toward the CNS, it points to sensory neurons.

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