part of part of bounding layer of bounding layer of composed primarily of entorhinal cortex nerve fiber central nervous system cell part cluster nervous system cell part layer entorhinal cortex layer 1 entorhinal cortex molecular layer NLXANAT:090820 NLXANAT:20090701 layer I of entorhinal cortex superficial plexiform layer of entorhinal cortex entorhinal cortex layer I molecular layer of entorhinal cortex UBERON:0022336 Layer of the entorhinal cortex that is most superficial, continuous with layer 1 of adjacent neocortex and the molecular layer of the subiculum, lying deep to the pial layer and superficial to layer 2. It is relatively acellular consisting mostly of fibers running transversely relative to the cortical surface (Adapted from Paxinos, G. The rat central nervous system, 2nd ed, Academic Press, San Diego, 1995, pg. 474).