Corticopontine fibers | |
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![]() Coronal section through mid-brain. 1. Corpora quadrigemina. 2. Cerebral aqueduct. 3. Central gray stratum. 4. Interpeduncular space. 5. Sulcus lateralis. 6. Substantia nigra. 7. Red nucleus of tegmentum. 8. Oculomotor nerve, with 8’, its nucleus of origin. a. Lemniscus (in blue) with a’ the medial lemniscus and a" the lateral lemniscus. b. Medial longitudinal fasciculus. c. Raphé. d. Temporopontine fibers. e. Portion of medial lemniscus, which runs to the lentiform nucleus and insula. f. Cerebrospinal fibers. g. Frontopontine fibers. | |
Details | |
Identifiers | |
Latin | fibrae corticopontinae, tractus corticopontinus |
NeuroNames | 1322 |
TA98 | A14.1.05.107 |
TA2 | 5619 |
FMA | 75190 |
Anatomical terms of neuroanatomy |
Corticopontine fibers are projections from layer V of the cerebral cortex to the pontine nuclei of the ventral pons.[1] They represent the first link in a cortico-cerebello-cortical pathway mediating neocerebellar control of the motor cortex. The pathway is especially important for voluntary movements.[2]
Depending upon the lobe of origin, they can be classified as frontopontine fibers, parietopontine fibers, temporopontine fibers or occipitopontine fibers. Fibers from the frontal lobe and the parietal lobe are more numerous. [2]