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|Brain: Arcuate nucleus (medulla)|
|Transverse section of medulla oblongata below the middle of the olive. ("Nucleus arcuatus" visible near bottom right.)|
|Dissection of brain-stem. Lateral view. (Labels for "External arcuate fibers" and "Dorsal external arcuate fibers" visible at lower right.)|
|Gray's||subject #187 767|
In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids. They receive fibers from the corticospinal tract and send their axons through the external arcuate fibers and striae medullares to the cerebellum via the inferior cerebellar peduncle.
Brain: rhombencephalon (hindbrain)
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