Four convergent patterns of input from the six semicircular canals to motoneurons of different neck muscles in the upper cervical cord.

Shinoda, Y; Sugiuchi, Y; Futami, T; Kakei, S; Izawa, Y; Na, J

Shinoda, Y; Sugiuchi, Y; Futami, T; Kakei, S; Izawa, Y; Na, J.

Afiliación

Shinoda Y; Department of Physiology, School of Medicine, Tokyo Medical and Dental University, Japan. yshinoda.phyl@med.tmd.ac.jp

Ann N Y Acad Sci ; 781: 264-75, 1996 Jun 19.

Article en En | MEDLINE | ID: mdl-8694419

RESUMEN

This study was performed to investigate the pattern of input and the pathways from the six semicircular canals to motoneurons of various neck muscles in anesthetized cats. Intracellular postsynaptic potentials from neck motoneurons were recorded in response to electrical stimulation of the six ampullary nerves. The results showed that motoneurons of a particular neck muscle have a homogeneous convergent pattern of input from the six semicircular canals; there are four patterns of input from the six semicircular canals to motoneurons of various neck muscles; and the trisynaptic connection between the semicircular canal nerves and neck motoneurons was identified in addition to the disynaptic connection.

Asunto(s)

Neuronas Motoras/fisiología; Cuello/inervación; Canales Semicirculares/inervación; Potenciales de Acción; Animales; Gatos; Estimulación Eléctrica; Interneuronas/fisiología; Músculos/inervación; Canales Semicirculares/fisiología; Médula Espinal/anatomía & histología; Médula Espinal/fisiología

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Canales Semicirculares / Neuronas Motoras / Cuello Límite: Animals Idioma: En Revista: Ann N Y Acad Sci Año: 1996 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos

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