Fasciculus cuneatus

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Cross-section through the spinal cord, 3b denotes the cuneatus fasciculus

The cuneatus fasciculus ( lat. , Dt. The wedge-shaped bundle ) is a nerve path within the spinal cord . It carries epicritical and proprioceptive information from the upper extremity and upper trunk to the brain. The fasciculus cuneatus belongs to the posterior cord tracts of the spinal cord with the fasciculus gracilis , which it attaches to the side .

The nerve fibers of the fasciculus cuneatus run on the same side (ipsilateral) without prior switching to the nucleus cuneatus in the medulla oblongata , where they are switched to the second neuron. After this switchover, they continue as a lemniscus medialis , in which the crossing takes place on the opposite side (contralateral).

The fasciculus cuneatus is also referred to as the Burdach bundle after Friedrich Burdach , who first described it.

literature

  • Martin Trepel : Neuroanatomy with student consultant access. Structure and function . 4th edition. Elsevier, Urban & Fischer Verlag, Munich 2008, ISBN 978-3-437-41298-1 , pp. 106-107.