Question

the link between peripheral receptor and cortical neuron is called a(n)
sympathetic chain.
adaptation pathway.
spinocortical line.
efferent pathway.
labeled line.

Explanation:

The labeled line theory states that each sensory receptor (peripheral receptor) is linked to a specific cortical neuron via a dedicated pathway called a labeled line. This ensures that a particular type of sensory information (e.g., touch, pain) is transmitted accurately to the appropriate area of the cortex.

• The sympathetic chain is part of the autonomic nervous system involved in the "fight - or - flight" response, not a direct link between peripheral receptor and cortical neuron.
• Adaptation pathway refers to the process by which receptors become less responsive to a constant stimulus over time, not the structural link.
• Spinocortical line is not a standard term in sensory neuroscience.
• Efferent pathways carry signals from the central nervous system to effectors (e.g., muscles), while we are looking for a pathway from peripheral receptor (sensory input) to cortex.

Answer:

labeled line.