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  • 1970-1974  (2)
  • Recurrent Inhibition  (2)
  • Microglia
  • β-amyloid
  • 1
    Electronic Resource
    Electronic Resource
    Recurrente Hemmung der Extensor-Fusimotoneurone? (1971)
    Springer
    Pflügers Archiv 329 (1971), S. 23-33 
    Details
    ISSN: 1432-2013
    Keywords: Extensor γ-Motoneurones ; Recurrent Inhibition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The antidromic effect of ventral root or muscle nerve stimulation has been studied on functionally isolated γ-efferents to the medial gastrocnemius muscle in the intercollicular decerebrate cat. Tetanic stimulation of the ventral root at levels below the threshold for the investigated γ-efferents decreases the activity of 10 out of 19 γ-motoneurones. This effect is greater in cats with intact contralateral dorsal roots. Tetanic stimulation of synergic muscular nerves inhibits some of the investigated γ-motoneurones, whereas tetanic stimulation of antagonistic muscular nerves fails to have any inhibitory effect. It is suggested that the recurrent inhibition of γ-motoneurones is mediated via at least one additional interneuron between the Renshaw cell and the γ-motoneuron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00586898
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Length-dependent autogenetic inhibition of extensor γ-motoneurones in the decerebrate cat (1974)
    Springer
    Pflügers Archiv 346 (1974), S. 251-262 
    Details
    ISSN: 1432-2013
    Keywords: Extensor γ-Motoneurones ; Autogenetic Inhibition ; Recurrent Inhibition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of stretching the triceps surae muscle on the resting discharge of functionally isolated and identified γ-efferents in the medial gastrocnemius nerve were studied in intercollicular decerebrate cats. Extension of the muscle decreases the activity of 9 out of 25 γ-motoneurones. This inhibition becomes apparent at about 8 mm muscle length and increases with increasing extension. Only those γ-efferents exhibiting this length-dependent inhibition are found to be inhibited by repetitive antidromic stimulation of the ventral root or the homonymous muscle nerve. We suggest that inhibition of fusimotor neurones by muscle stretch is at least partly mediated by the recurrent collaterals of the α-motoneurones activated by the stretch. 11 γ-motoneurones were predominantly excited by muscle stretch applied to the detached Achilles tendon as well as by squeezing the tendon. Nociceptors within the tendon or surrounding fascia are probably responsible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00595711
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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