Afferent neurons carry information:

Afferent neurons carry information:

• A. From the CNS to the muscles
• B. To the CNS from sensory receptors
• C. Between brain regions
• D. To muscles from the spinal cord

Answer: (B)

Afferent neurons are the sensory pathways that bring information into the central nervous system from receptors throughout the body. They carry signals such as touch, temperature, pain, and proprioception from the periphery toward the brain and spinal cord. The term afferent reflects “carrying toward” the CNS. In contrast, efferent neurons carry commands away from the CNS to muscles and glands, enabling actions. Some neurons inside the CNS function as interneurons, connecting neurons and coordinating signals within the brain or spinal cord, which is why they wouldn’t be described as carrying information to the CNS from peripheral receptors.

Afferent neurons are the sensory pathways that bring information into the central nervous system from receptors throughout the body. They carry signals such as touch, temperature, pain, and proprioception from the periphery toward the brain and spinal cord. The term afferent reflects “carrying toward” the CNS. In contrast, efferent neurons carry commands away from the CNS to muscles and glands, enabling actions. Some neurons inside the CNS function as interneurons, connecting neurons and coordinating signals within the brain or spinal cord, which is why they wouldn’t be described as carrying information to the CNS from peripheral receptors.