Gracile nucleus

The nucleus gracilis (syn. Goll - core, according to Friedrich Goll ) is a collection of nerve cells ( core area ) in the medulla oblongata at the caudal end of the fourth ventricle. Externally visible bulge on the rear wall of the medulla oblongata through the core of a hill out, which is called gracile tubercle. The nucleus gracilis belongs to the so-called lemniskalen system ( dorsal column path ), a conduction pathways for the sensitive perception in mammals. As the cuneate nucleus it is therefore also known as dorsal column nucleus. Embryo arises from the core area of the wing panel migrating neuroblasts of the brain system.

His afferents it relates gracilis via the fasciculus. Gracilis in the nucleus this will be switched to the second synaptic neuron. The efferent fibers run as bulbothalamicus tract to the nucleus of the ventral posterolateral thalamus. Tick ​​still in the medulla oblongata - more precisely in the loop crossing ( decussation lemniscorum ) - as arcuate fibers externae on the other side of the body and then proceed as medial lemniscus in the diencephalon.