Afferents to the trigeminal and facial motor nuclei in pigeon (Columba livia L.): Central connections of jaw motoneurons
- 9 August 1982
- journal article
- research article
- Published by Wiley in Journal of Comparative Neurology
- Vol. 209 (3) , 301-312
- https://doi.org/10.1002/cne.902090308
Abstract
Trigeminal and facial motor nuclei innervating the pigeon's jaw muscles were identified using a combination of microstimulation and EMG recording and HRP injections were made iontophoretically. The trigeminal motor nucleus receives an ipsilateral projection from sensory neurons in the trigeminal mesencephalic nucleus which forms the afferent limb of the monosynaptic stretch reflex of the jaw‐closers. Both the trigeminal and facial motor nuclei receive bilateral projections from interneurons in the intertrigeminal area and the lateral (parvocellular) reticular formation of the pons and medulla. These neurons serve as premotor elements in the control of jaw movements, mediating ascending, descending and internuclear connections. The similarity of inputs to the trigeminal and facial nuclei may reflect their common function as jaw motoneurons in this species.This publication has 49 references indexed in Scilit:
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