Bilateral projection of functionally characterized trigeminal oralis neurons to trigeminal motoneurons in cats.
Intracellular Neurobiotin-injections were used to label functionally identified neurons in the rostro-dorsomedial part of the trigeminal oral nucleus (Vo.r) in the cat. The labeled Vo.r neurons with the mechanoreceptive field in oral tissues innervated bilaterally either jaw-opening motoneurons or jaw-closing motoneurons. This result suggests that Vo.r neurons play an important role in sensory-motor reflexes responsible for coordination of bilaterally symmetrical jaw movements.
Yoshida
Atsushi
A
Department of Oral Anatomy and Neurobiology, Osaka University Graduate School of Dentistry, Suita, Osaka 565-0871, Japan. yoshida@dent.osaka-u.ac.jp
Yamamoto
Masaaki
M
Moritani
Masayuki
M
Fukami
Hideyuki
H
Bae
Yong-Chul
YC
Chang
Zheng
Z
Sugiyo
Shinichi
S
Takemura
Motohide
M
Park
Kuk-Pil
KP
Shigenaga
Yoshio
Y
D000818:Animals; D001369:Axons / Q000502:physiology / Q000648:ultrastructure*; D001710:Biotin / Q000031:analogs & derivatives*; D002415:Cats; D003712:Dendrites / Q000502:physiology / Q000648:ultrastructure; D007839:Functional Laterality / Q000502:physiology*; D008340:Mandibular Nerve / Q000166:cytology / Q000502:physiology; D008410:Masticatory Muscles / Q000294:innervation / Q000502:physiology; D009046:Motor Neurons / Q000166:cytology* / Q000502:physiology; D009434:Neural Pathways / Q000166:cytology* / Q000502:physiology; D011149:Pons / Q000166:cytology* / Q000502:physiology; D017729:Presynaptic Terminals / Q000502:physiology / Q000648:ultrastructure; D012021:Reflex, Abnormal / Q000502:physiology; D014279:Trigeminal Nucleus, Spinal / Q000166:cytology* / Q000502:physiology
C070614:neurobiotin; D001710:Biotin