Uberon definition : Internal arcuate fibers are the axons of second-order neurons contained within the
gracile and cuneate nuclei of the medulla oblongata. These fibers cross from one side
of the medulla to the other to form the medial lemniscus. Part of the dorsal column-medial
lemniscus system (second neuron), the internal arcuate fibers are important for relaying
the sensation of fine touch and proprioception to the thalamus and ultimately to the
cerebral cortex.;
Internal arcuate fibers are the axons of second-order neurons contained within the
gracile and cuneate nuclei of the medulla oblongata. These fibers cross from one side
of the medulla to the other to form the medial lemniscus. Part of the dorsal column-medial
lemniscus system (second neuron), the internal arcuate fibers are important for relaying
the sensation of fine touch and proprioception to the thalamus and ultimately to the
cerebral cortex.