- Pontine nuclei
Brain: Pontine nuclei Cross section through the lower pons showing the pontine nuclei (#22) and the pontocerebellar fibers emerging from them to become the middle cerebellar peduncle Latin nuclei pontis Gray's subject #187 786 NeuroNames hier-613
The pontine nuclei (or griseum pontis) are a part of the pons involved in motor activity. Corticopontine fibres carry information from the primary motor cortex to the ipsilateral pontine nucleus in the ventral pons, and the pontocerebellar projection then carries that information to the contralateral cerebellum via the middle cerebellar peduncle.
They therefore allow modification of actions in the light of their outcome, or error correction, and are hence important in learning motor skills.
Human brain, rhombencephalon, metencephalon: pons (TA A14.1.05.101–604, GA 9.785) Dorsal/
Trapezoid body/VIII · Trigeminal lemniscus (Dorsal trigeminal tract, Ventral trigeminal tract) · Medial lemniscus · Lateral lemniscus
MLF, III, IV and VI: Vestibulo-oculomotor fibersAnterior trigeminothalamic tract · Central tegmental tractWhite: Motor/descending
ICP (Vestibulocerebellar tract)MLF, III, IV and VI: Vestibulospinal tract (Medial vestibulospinal tract, Lateral vestibulospinal tract)Other grey
(base)Pontine nucleiWhite: Motor/descendingSurfaceBasilar sulcus
Other grey: Raphe/
- Neuroscience stubs
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