Observations on morphology and electrophysiological properties of the normal and axotomized facial motoneurons in the cat

Autor: Yoshihiro Nishimura, Tetsuro Yamamoto, Tsutomu Tanaka, Toshihiro Asahara
Rok vydání: 1992
Předmět:
Zdroj: Brain Research. 596:305-310
ISSN: 0006-8993
DOI: 10.1016/0006-8993(92)91562-s
Popis: The correlation between the morphology of facial motoneurons stained intracellularly with horseradish peroxidase and their physiological parameters was examined in cats following facial nerve section and in cats with intact facial nerve. A certain statistical relationship exists between cell size and excitability in normal neurons. After axotomy, facial neurons showed a slow conduction velocity and a low rheobasic current, but had a normal cell size. Physiological changes include repetitive firing in response to intracellular current injection, reflecting an increase in the excitability in the axotomized neurons.
Databáze: OpenAIRE