The Polysynaptic Pathways from the Low Threshold Cutaneous Afferents of Trunk to Motoneurons Innervating Hindlimb Muscles in the Spinal Cat

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概要

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• We studied the reflex actions of the cutaneous afferents innervating trunk to hindlimb motoneurons in the spinal cat using intracellular recording technique. The stimulation of the trunk cutaneous afferents entering into L2 -L5 spinal segment produced different types of PSPs in hindlimb motoneurons via polysynaptic neuronal pathways. The trunk cutaneous afferents predominantly caused EPSPs in the flexor motoneurons and IPSPs in the extensor motoneurons. The size and latency of PSPs were related to the proximity of the spinal segments of the nerves stimulated to the spinal segments of motoneurons. These findings suggest that the neuronal pathways from trunk cutaneous afferents to hindlimb motoneurons play important role to coordinate between trunk and hindlimbs.

• 社団法人　日本獣医学会の論文

著者

• Wada Yasuhiro

  The United Graduate School of Veterinary Science, Yamaguchi University

• Goto Megumi

  The United Graduate School of Veterinary Science, Yamaguchi University

• WADA Naomi

  Laboratory of System Physiology, Veterinary Medical School, Yamaguchi University

• Wada Naomi

  Laboratory Of Molecular And Biochemical Toxicology Graduate School Of Pharmaceutical Sciences Tohoku

• Sano Yukari

  Laboratory of System Physiology, Veterinary Medical School, Yamaguchi University

• HOSOIDO Taisei

  Osaka Veterinary Referral Center

関連論文

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• The Polysynaptic Pathways from the Low Threshold Cutaneous Afferents of Trunk to Motoneurons Innervating Hindlimb Muscles in the Spinal Cat
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