PMID: 3746698May 1, 1986Paper

Innervation and function of hind-limb muscles in the cat after cross-union of the tibial and peroneal nerves

The Journal of Physiology
T GordonChristine K Thomas

Abstract

Peripheral nerves to flexor (common peroneal) and extensor (tibial) nerves in a hind limb of seven 2-6 month old cats were cut and cross-united to study the plasticity in the spinal cord. The extent to which motoneurones from extensor and flexor motor pools were misdirected to their antagonistic muscles was determined by measuring the potentials generated at the spinal roots from the crossed nerves. The axons contributing to the extensor nerves normally leave the cord in the L7 and S1 ventral and dorsal roots while the axons contributing to the flexor nerves normally leave the cord in the L6 and L7 ventral and dorsal roots. Following cross-union, medial gastrocnemius (m.g.) and lateral gastrocnemius-soleus (l.g.s.) nerves were primarily supplied by L6 and L7 ventral and dorsal roots, and common peroneal (c.p.) nerves were primarily supplied by L7 and S1 ventral and dorsal roots. A method for quantifying the completeness of cross-reinnervation was developed. The pattern of e.m.g. activity in cross-reinnervated muscles during locomotion was primarily determined by the innervating nerve with the reinnervated flexor muscles being activated during the extensor phase. However, the cross-reinnervated extensor muscles showed evidence o...Continue Reading

Citations

Aug 26, 1998·The Journal of Physiology·A WindischT Lømo
Jun 30, 2015·The European Journal of Neuroscience·Tessa Gordon, Arthur W English
Dec 10, 2008·Neurosurgery Clinics of North America·Thomas Carlstedt
Dec 2, 2010·The Journal of Comparative Neurology·Shirley K HamiltonArthur W English
Apr 10, 2010·The European Journal of Neuroscience·Stephen W P KempRajiv Midha
Nov 1, 2000·The Journal of Hand Surgery : Journal of the British Society for Surgery of the Hand·B S LutzF C Wei
Nov 4, 2004·Canadian Journal of Physiology and Pharmacology·Tessa GordonRichard B Stein
Jun 6, 2017·Techniques in Orthopaedics : TIO·Todd A KuikenGregorgy A Dumanian
Sep 1, 1990·Baillière's Clinical Endocrinology and Metabolism·R FrischknechtG Vrbová

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