Accessory cuneate nucleus | |
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Details | |
Part of | Medulla oblongata |
Identifiers | |
Latin | nucleus cuneatus accessorius |
NeuroNames | 768 |
NeuroLex ID | birnlex_2634 |
TA98 | A14.1.04.209 |
TA2 | 6000 |
FMA | 72603 |
Anatomical terms of neuroanatomy |
The accessory cuneate nucleus (also lateral cuneate nucleus, or external cuneate nucleus[1]: 431 ) is a nucleus situated in the caudal medulla oblongata just lateral to the cuneate nucleus. It relays unconscious proprioceptive sensory information from the upper limb and upper trunk to the cerebellum via the cuneocerebellar fibers.[2]
The neurons of the ACN (as well as those of the lateral portion of the cuneate nucleus) are functionally homologous with the posterior thoracic nucleus; the cuneocerebellar fibers are therefore the upper body functional equivalent of the dorsal spinocerebellar tract.[1]: 432