Internal arcuate fiber bundle

System Nervous

Internal arcuate fiber bundle

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.

Also known as arcuate fibers medial lemniscus, fibrae arcuatae internae, internal arcuate fibers, internal arcuate fibres, internal arcuate tract — per UBERON

The Internal arcuate fiber bundle is a part of the Nervous.

Also identified as