Additionally , pyramidal cells in layer III of the entorhinal cortex send topographic projections along the perforant pathway which branch into the subiculum and CA1 .
Fibers arising in the lateral portions of the entorhinal cortex show enkephalin immunoreactivity , whereas medial portions appear to contain cholecystokinin .
Pyramidal cells in layer III of the entorhinal cortex send topographic projections along the perforant pathway which branch into the subiculum and CA1 .
Fibers arising in the lateral portions of the entorhinal cortex show enkephalin immunoreactivity , whereas medial portions appear to contain cholecystokinin .