Wikia

Psychology Wiki

Posterior external arcuate fibers

Talk0
34,142pages on
this wiki

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)


Posterior external arcuate fibers
Gray699
Diagram showing the course of the arcuate fibers. (Testut.) 1. Medulla oblongata anterior surface. 2. Anterior median fissure. 3. Fourth ventricle. 4. Inferior olivary nucleus, with the accessory olivary nuclei. 5. Gracile nucleus. 6. Cuneate nucleus. 7. Trigeminal. 8. Inferior peduncles, seen from in front. 9. Posterior external arcuate fibers. 10. Anterior external arcuate fibers. 11. Internal arcuate fibers. 12. Peduncle of inferior olivary nucleus. 13. Nucleus arcuatus. 14. Vagus. 15. Hypoglossal.
Latin fibrae arcuatae externae posteriores
Gray's subject #187 783
System
MeSH [1]
Gray694
Section of the medulla oblongata at about the middle of the olive. (Arcuate fibers labeled at center right.)

The posterior external arcuate fibers (dorsal external arcuate fibers) take origin in the gracile and cuneate nuclei; they pass to the inferior peduncle of the same side.

It is uncertain whether fibers are continued directly from the gracile and cuneate fasciculi into the inferior peduncle.

The term "cuneocerebellar tract" is sometimes used to collectively refer to the posterior external arcuate fibers.[1]

See alsoEdit

ReferencesEdit

  1. Dorlands/Elsevier t_15/12816128

Additional imagesEdit

External linksEdit


This page uses Creative Commons Licensed content from Wikipedia (view authors).

Around Wikia's network

Random Wiki