capable of part of capable of part of contributes to morphology of extends_fibers_into proprioception dorsal root ganglion spinal nerve dorsal root of spinal cord https://upload.wikimedia.org/wikipedia/commons/d/d2/Spinal_nerve.svg radix posterior (nervus spinalis) dorsal roots In anatomy and neurology, the dorsal root (or posterior root) is the afferent sensory root of a spinal nerve. At the distal end of the dorsal root is the dorsal root ganglion, which contains the neuron cell bodies of the nerve fibres conveyed by the root. If the dorsal root of a spinal nerve were severed it would lead to numbness in certain areas of the body. The lateral division of the dorsal root contains lightly myelinated and unmyelinated axons of small diameter. These transmit pain and temperature sensation from the body. These fibers cross through the anterior white commissure to form the Anterior lateral system in the lateral funiculus. The medial division of the dorsal root contains myelinated axons of larger diameter. These transmit information of discriminative touch, pressure, vibration, and conscious proprioception originating from spinal levels C2 through S5. These fibers are pushed in towards the posterior medial sulcus to form the fasciculus gracilis and the fasciculus cuneatus. [WP,unvetted][Wikipedia:Posterior_root_of_spinal_nerve]. sensory spinal root SCTID:362436008 neuronames:1661 radix posterior ZFA:0000652 TAO:0000652 BAMS:drt radix dorsalis The dorsal roots contain afferent sensory axons. The dorsal roots of each side continue outwards, along the way forming a dorsal root ganglion (also called a spinal ganglion). UMLS:C0205955 Wikipedia:Posterior_root_of_spinal_nerve root dorsali nervi spinalis FMA:5980 posterior root of spinal nerve BTO:0000360 sensory root of spinal nerve radix sensoria (nervus spinalis) NLXANAT:20090208 dorsal root radix posterior nervi spinalis dorsal spinal root dorsal root of spinal nerve dorsal spinal nerve root NCIT:C32477 UBERON:0002261 root sensoria nervi spinalis spinal nerve root