Abstract：
:Peripheral input to lamina VIII interneurones was investigated by using extracellular and/or intracellular records from them. The interneurones were located in the L4-L5 spinal segments and projected to contralateral motor nuclei in the L7 segment. They constituted a non-homogeneous population but their input from muscle afferents (mainly group II afferents of quadriceps, flexor digitorum longus and pretibial flexors and group I afferents of triceps surae and hamstring nerves) and from cutaneous and joint afferents resembled the input to ipsilaterally projecting laminae V-VII interneurones of the same segments rather than the input to more caudally located lamina VIII interneurones. Since the ipsilaterally projecting laminae V-VII interneurones with such an input might be involved in locomotion, it is proposed that this is also the case for the contralaterally projecting lamina VIII midlumbar interneurones, especially those excited by stimuli applied in the cuneiform nucleus (mesencephalic locomotor region).
journal_name
Brain Resjournal_title
Brain researchauthors
Jankowska E,Noga BRdoi
10.1016/0006-8993(90)91618-qsubject
Has Abstractpub_date
1990-12-10 00:00:00pages
327-30issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(90)91618-Qjournal_volume
535pub_type
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