Question

multiple choice 2 points
sensory stimuli enter the spinal cord via ______.
efferent effectors
interneurons
sensory receptors
efferent axons
afferent axons

Explanation:

Analyze sensory pathway direction

Using the Afferent and Efferent Fibers knowledge point

• Sensory information travels from peripheral receptors toward the central nervous system (spinal cord and brain).
• Nerve fibers carrying signals toward the central nervous system are classified as afferent (sensory) fibers.
• Nerve fibers carrying signals away from the central nervous system to effectors are classified as efferent (motor) fibers.

Determine the entry mechanism

• Sensory stimuli are detected by sensory receptors, but the physical entry into the spinal cord structure occurs via the nerve processes.
• These incoming nerve processes are the central projections of sensory neurons, which are composed of afferent axons.
• Therefore, sensory stimuli enter the spinal cord via afferent axons.

Answer:

• efferent effectors
• interneurons
• sensory receptors
• efferent axons
• afferent axons (Correct answer)