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Ventral roots
The formation of the spinal nerve from the dorsal and ventral roots
Latin radix anterior nervi spinalis
Gray's subject #208 916
MeSH A08.800.800.720.725
A spinal nerve with its anterior and posterior roots.

In anatomy and neurology, the ventral root (or anterior root) is the efferent motor root of a spinal nerve. At its distal end, the ventral root joins with the dorsal root to form a mixed spinal nerve.

Additional images

See also

References & Bibliography

Key texts


  • Bosch, E. P., Mitsumoto, H., & Chad, D. A. (1991). Disorders of peripheral nerves, plexuses, and nerve roots. Boston, MA, England: Butterworth Heinemann Publishers.
  • Burke, R. E. (2004). Spinal Cord: Ventral Horn. New York, NY: Oxford University Press.
  • Uramura, K., Yada, T., Muroya, S., & Takigawa, M. (2000). Ca-super(2+ ) oscillations in response to methamphetamine in dopamine neurons of the ventral tegmental area in rats subchronically treated with this drug. New York, NY: New York Academy of Sciences.


  • Ammassari-Teule, M., & Passino, E. (1997). The dorsal hippocampus is selectively involved in the processing of spatial information even in mice with a genetic hippocampal dysfunction: Psychobiology Vol 25(2) Jun 1997, 118-125.
  • Anker, A. R., Sadacca, B. F., & Yates, B. J. (2006). Vestibular inputs to propriospinal interneurons in the feline C-sub-1-C-sub-2 spinal cord projecting to the C-sub-5-C-sub-6 ventral horn: Experimental Brain Research Vol 170(1) Mar 2006, 39-51.
  • Ault, B., & Hildebrand, L. M. (1993). Effects of excitatory amino acid receptor antagonists on a capsaicin-evoked nociceptive reflex: A comparison with morphine, clonidine and baclofen: Pain Vol 52(3) Mar 1993, 341-349.
  • Averbeck, B. B., & Romanski, L. M. (2006). Probabilistic encoding of vocalizations in macaque ventral lateral prefrontal cortex: Journal of Neuroscience Vol 26(43) Oct 2006, 11023-11033.
  • Bell, J. A., & Jaffe, J. H. (1986). Electrophysiological evidence for a presynaptic mechanism of morphine withdrawal in the neonatal rat spinal cord: Brain Research Vol 382(2) Sep 1986, 299-304.
  • Bengtson, C. P., Lee, D. J., & Osborne, P. B. (2004). Opposing Electrophysiological Actions of 5-HT on Noncholinergic and Cholinergic Neurons in the Rat Ventral Pallidum In Vitro: Journal of Neurophysiology Vol 92(1) Jul 2004, 433-443.
  • Blaha, C. D., Allen, L. F., Das, S., Inglis, W. L., & et al. (1996). Modulation of dopamine efflux in the nucleus accumbens after cholinergic stimulation of the ventral tegmental area in intact, pedunculopontine tegmental nucleus-lesioned, and laterodorsal tegmental nucleus-lesioned rats: Journal of Neuroscience Vol 16(2) Jan 1996, 714-722.
  • Borowsky, R., Cummine, J., Owen, W. J., Friesen, C. K., Shih, F., & Sarty, G. E. (2006). FMRI of Ventral and Dorsal Processing Streams in Basic Reading Processes: Insular Sensitivity to Phonology: Brain Topography Vol 18(4) Jun 2006, 233-239.
  • Brustein, E., & Rossignol, S. (1999). Recovery of locomotion after ventral and ventrolateral spinal lesions in the cat. II. Effects of noradrenergic and serotoninergic drugs: Journal of Neurophysiology Vol 81(4) Apr 1999, 1513-1530.
  • Calder, A. J., Beaver, J. D., Davis, M. H., van Ditzhuijzen, J., Keane, J., & Lawrence, A. D. (2007). Disgust sensitivity predicts the insula and pallidal response to pictures of disgusting foods: European Journal of Neuroscience Vol 25(11) Jun 2007, 3422-3428.
  • Chen, C.-M., Lakatos, P., Shah, A. S., Mehta, A. D., Givre, S. J., Javitt, D. C., et al. (2007). Functional anatomy and interaction of fast and slow visual pathways in macaque monkeys: Cerebral Cortex Vol 17(7) Jul 2007, 1561-1569.
  • Chiang, E., & Strowbridge, B. W. (2007). Diversity of neural signals mediated by multiple, burst-firing mechanisms in rat olfactory tubercle neurons: Journal of Neurophysiology Vol 98(5) Nov 2007, 2716-2728.
  • Churchill, L., & Kalivas, P. W. (1999). The involvement of the mediodorsal nucleus of the thalamus and the midbrain extrapyramidal area in locomotion elicited from the ventral pallidum: Behavioural Brain Research Vol 104(1-2) Oct 1999, 63-71.
  • Craggs, M. D., & Stephenson, J. D. (1982). The effects of parasympathetic blocking agents on bladder electromyograms and function in conscious and anaesthetized cats: Neuropharmacology Vol 21(7) Jul 1982, 695-703.
  • Crone, E. A., Donohue, S. E., Honomichl, R., Wendelken, C., & Bunge, S. A. (2006). Brain regions mediating flexible rule use during development: Journal of Neuroscience Vol 26(43) Oct 2006, 11239-11247.
  • Deco, G., & Rolls, E. T. (2006). Decision-making and Weber's law: A neurophysiological model: European Journal of Neuroscience Vol 24(3) Aug 2006, 901-916.
  • DeGutis, J. M., Bentin, S., Robertson, L. C., & D'Esposito, M. (2007). Functional plasticity in ventral temporal cortex following cognitive rehabilitation of a congenital prosopagnosic: Journal of Cognitive Neuroscience Vol 19(11) Nov 2007, 1790-1802.
  • Dennis, S. G., & Melzack, R. (1977). Pain-signalling systems in the dorsal and ventral spinal cord: Pain Vol 4(2) Oct 1977, 97-132.
  • Dolan, S., & Cahusac, P. M. B. (2007). Enhanced short-latency responses in the ventral posterior medial (VPM) thalamic nucleus following whisker trimming in the adult rat: Physiology & Behavior Vol 92(3) Oct 2007, 500-506.
  • Farel, P. B., & Thompson, R. F. (1972). Habituation and dishabituation to dorsal root stimulation in the isolated frog spinal cord: Behavioral Biology Vol 7(1) Feb 1972, 37-45.
  • Florio, T., Capozzo, A., Nisini, A., Lupi, A., & Scarnati, E. (1999). Dopamine denervation of specific striatal subregions differentially affects preparation and execution of a delayed response task in the rat: Behavioural Brain Research Vol 104(1-2) Oct 1999, 51-62.
  • Fu, L.-Y., & van den Pol, A. N. (2008). Agouti-related peptide and MC3/4 receptor agonists both inhibit excitatory hypothalamic ventromedial nucleus neurons: Journal of Neuroscience Vol 28(21) May 2008, 5433-5449.
  • Fujita, T., Yamasaki, T., & Tobimatsu, S. (2007). Abnormal visuo-spatial information processing in autism spectrum disorder: Japanese Psychological Review Vol 50(1) 2007, 46-53.
  • Goodale, M., & Milner, D. (2006). One brain--two visual systems: The Psychologist Vol 19(11) Nov 2006, 660-663.
  • Grillner, S., McClellan, A., & Sigvardt, K. (1982). Mechanosensitive neurons in the spinal cord of the lamprey: Brain Research Vol 235(1) Mar 1982, 169-173.
  • Grillner, S., & Wallen, P. (1977). Is there a peripheral control of the central pattern generators for swimming in dogfish? : Brain Research 127(2) 1977, 291-295.
  • Hatakeyama, J., Sakamoto, S., & Kageyama, R. (2006). Hes1 and Hes5 Regulate the Development of the Cranial and Spinal Nerve Systems: Developmental Neuroscience Vol 28(1-2) Feb 2006, 92-101.
  • Iizuka, M., Nishimaru, H., & Kudo, N. (1998). Development of the spatial pattern of 5-HT-induced locomotor rhythm in the lumbar spinal cord of rat fetuses in vitro: Neuroscience Research Vol 31(2) Jun 1998, 107-111.
  • Ishizuki, M., & Yanagisawa, M. (1992). Antinociceptive effects of tizanidine, diazepam and eperisone in isolated spinal cord-tail preparations of newborn rat: Pain Vol 48(1) Jan 1992, 101-106.
  • Johnson, M. K., Raye, C. L., Mitchell, K. J., Greene, E. J., Cunningham, W. A., & Sanislow, C. A. (2005). Using fMRI to investigate a component process of reflection: Prefrontal correlates of refreshing a just-activated representation: Cognitive, Affective & Behavioral Neuroscience Vol 5(3) Sep 2005, 339-361.
  • Kaas, J. H., & Lyon, D. C. (2007). Pulvinar contributions to the dorsal and ventral streams of visual processing in primates: Brain Research Reviews Vol 55(2) Oct 2007, 285-296.
  • Kalmring, K., Kohne, R., & Lewis, B. (1983). The acoustic behaviour of the bushcricket Tettigonia cantans: III. Coprocessing of auditory and vibratory information in the central nervous system: Behavioural Processes Vol 8(3) Jul 1983, 213-228.
  • Kimura, A., Donishi, T., Okamoto, K., Imbe, H., & Tamai, Y. (2007). Efferent connections of the ventral auditory area in the rat cortex: Implications for auditory processing related to emotion: European Journal of Neuroscience Vol 25(9) May 2007, 2819-2834.
  • Kimura, M., Katayama, J. i., & Murohashi, H. (2006). Independent processing of visual stimulus changes in ventral and dorsal stream features indexed by an early positive difference in event-related brain potentials: International Journal of Psychophysiology Vol 59(2) Feb 2006, 141-150.
  • Kjaerulff, O., & Kiehn, O. (1997). Crossed rhythmic synaptic input to motoneurons during selective activation of the contralateral spinal locomotor network: Journal of Neuroscience Vol 17(24) Dec 1997, 9433-9447.
  • Kuhne, R., Lewis, B., & Kalmring, K. (1980). The responses to ventral cord neurons of Decticus verrucivorus (L) to sound and vibration stimuli: Behavioural Processes Vol 5(1) Apr 1980, 55-74.
  • Lajiness-O'Neill, R. R., Beaulieu, I., Titus, J. B., Asamoah, A., Bigler, E. D., Bawle, E. V., et al. (2005). Memory and learning in children with 22q11.2 Deletion Syndrome: Evidence for ventral and dorsal stream disruption? : Child Neuropsychology Vol 11(1) Feb 2005, 55-71.
  • Landisman, C. E., & Connors, B. W. (2007). VPM and PoM nuclei of the rat somatosensory thalamus: Intrinsic neuronal properties and corticothalamic feedback: Cerebral Cortex Vol 17(12) Dec 2007, 2853-2865.
  • Lepre, M., Fernandez, J., & Nicholls, J. G. (1998). Re-establishment of direct synaptic connections between sensory axons and motoneurons after lesions of neonatal opossum CNS (Monodelphis domestica) in culture: European Journal of Neuroscience Vol 10(8) Aug 1998, 2500-2510.
  • Ma, J., & Leung, L. S. (2006). Limbic System Participates in Mediating the Effects of General Anesthetics: Neuropsychopharmacology Vol 31(6) Jun 2006, 1177-1192.
  • McDonald, R. J., Jones, J., Richards, B., & Hong, N. S. (2006). A double dissociation of dorsal and ventral hippocampal function on a learning and memory task mediated by the dorso-lateral striatum: European Journal of Neuroscience Vol 24(6) Sep 2006, 1789-1801.
  • Molinari, H. H. (1982). The cutaneous sensitivity of units in laminae VII and VIII of the cat: Brain Research Vol 234(1) Feb 1982, 165-169.
  • Molnar-Szakacs, I., Iacoboni, M., Koski, L., & Mazziotta, J. C. (2005). Functional Segregation within Pars Opercularis of the Inferior Frontal Gyrus: Evidence from fMRI Studies of Imitation and Action Observation: Cerebral Cortex Vol 15(7) Jul 2005, 986-994.
  • Morgan, M. M., & Clayton, C. C. (2005). Defensive behaviors evoked from the ventrolateral periaqueductal gray of the rat: Comparison of opioid and GABA disinhibition: Behavioural Brain Research Vol 164(1) Oct 2005, 61-66.
  • Norman, J. (2002). Two visual systems and two theories of perception: An attempt to reconcile the constructivist and ecological approaches: Behavioral and Brain Sciences Vol 25(1) Feb 2002, 73-144.
  • Ohlsson, M., Hoang, T. X., Wu, J., & Havton, L. A. (2006). Glial reactions in a rodent cauda equina injury and repair model: Experimental Brain Research Vol 170(1) Mar 2006, 52-60.
  • Ohta, M. (1976). The reticulospinal inhibitory pathway and a neural basis of the excitement stage of anesthesia: Kyushu Neuro-psychiatry Vol 22(3-4) 1976, 242-245.
  • Parashos, I. A., Tupler, L. A., Blitchington, T., & Krishnan, K. R. R. (1998). Magnetic-resonance morphometry in patients with major depression: Psychiatry Research: Neuroimaging Vol 84(1) Nov 1998, 7-15.
  • Pearson, S. A., Mouihate, A., Pittman, Q. J., & Whelan, P. J. (2003). Peptidergic Activation of Locomotor Pattern Generators in the Neonatal Spinal Cord: Journal of Neuroscience Vol 23(31) Nov 2003, 10154-10163.
  • Rushworth, M. F. S., Buckley, M. J., Gough, P. M., Alexander, I. H., Kyriazis, D., McDonald, K. R., et al. (2005). Attentional Selection and Action Selection in the Ventral and Orbital Prefrontal Cortex: Journal of Neuroscience Vol 25(50) Dec 2005, 11628-11636.
  • Schauf, C. L., Schauf, V., Davis, F. A., & Mizen, M. R. (1978). Complement-dependent serum: Neuroelectric blocking activity in multiple sclerosis: Neurology Vol 28(5) May 1978, 426-430.
  • Smart, M. S., & Smart, R. C. (1971). On Schachter on obesity: American Psychologist Vol 26(10) Oct 1971, 935-936.
  • Stehouwer, D. J., & Farel, P. B. (1980). Central and peripheral controls of swimming in anuran larvae: Brain Research Vol 195(2) Aug 1980, 323-335.
  • Steinmetz, J. E., & et al. (1982). Central and peripheral influences on retention of postural asymmetry in rats: Journal of Comparative and Physiological Psychology Vol 96(1) Feb 1982, 4-11.
  • Steward, O., Zheng, B., Tessier-Lavigne, M., Hofstadter, M., Sharp, K., & Yee, K. M. (2008). Regenerative growth of corticospinal tract axons via the ventral column after spinal cord injury in mice: Journal of Neuroscience Vol 28(27) Jul 2008, 6836-6847.
  • Umezaki, T., Zheng, Y., Shiba, K., & Miller, A. D. (1997). Role of nucleus retroambigualis in respsiratory reflexes evoked by superior laryngeal and vestibular nerve afferents and in emesis: Brain Research Vol 769(2) Sep 1997, 347-356.
  • Valyear, K. F., Culham, J. C., Sharif, N., Westwood, D., & Goodale, M. A. (2006). A double dissociation between sensitivity to changes in object identity and object orientation in the ventral and dorsal visual streams: A human fMRI study: Neuropsychologia Vol 44(2) 2006, 218-228.
  • Wu, D. H., Morganti, A., & Chatterjee, A. (2008). Neural substrates of processing path and manner information of a moving event: Neuropsychologia Vol 46(2) Feb 2008, 704-713.

Additional material



  • Google Scholar
  • Boige, N., & Missonnier, S. (2004). The ventriloque child: Abdominal pains in the child: Revue Francaise de Psychosomatique No 26 2004, 119-146.


  • Hinckley, C. A. (2008). Hb9-expressing interneurons in the locomotor central pattern generator. Dissertation Abstracts International: Section B: The Sciences and Engineering.
  • Wojciulik, E. H. (1998). The neural basis of visual attention in the human brain: Contributions of the dorsal and ventral streams. Dissertation Abstracts International: Section B: The Sciences and Engineering.

External links

External links

Spinal cord

epidural space, dura mater, subdural space, arachnoid mater, subarachnoid space, pia mater, denticulate ligaments, conus medullaris, cauda equina, filum terminale, cervical enlargement, lumbar enlargement, anterior median fissure, dorsal root, dorsal root ganglion, dorsal ramus, ventral root, ventral ramus, sympathetic trunk, gray ramus communicans, white ramus communicans

grey matter: central canal, substantia gelatinosa of Rolando, reticular formation, substantia gelatinosa centralis, interneuron, anterior horn, lateral horn, posterior horn (column of Clarke, dorsal spinocerebellar tract)

white matter: anterior funiculus: descending (anterior corticospinal tract, vestibulospinal fasciculus, tectospinal tract), ascending (anterior spinothalamic tract, anterior proper fasciculus)

lateral funiculus: descending (lateral corticospinal tract, rubrospinal tract, olivospinal tract), ascending dorsal spinocerebellar tract, ventral spinocerebellar tract, spinothalamic tract, lateral spinothalamic tract, anterior spinothalamic tract, spinotectal tract, posterolateral tract, lateral proper fasciculus, medial longitudinal fasciculus

posterior funiculus: fasciculus gracilis, fasciculus cuneatus, posterior proper fasciculus

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