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Titolo:
On the branching of motoneurons
Autore:
Morgan, DL; Proske, U;
Indirizzi:
Monash Univ, Dept Physiol, Clayton, Vic 3168, Australia Monash Univ Clayton Vic Australia 3168 siol, Clayton, Vic 3168, Australia Monash Univ, Dept Elect & Comp Syst Engn, Clayton, Vic 3168, Australia Monash Univ Clayton Vic Australia 3168 Engn, Clayton, Vic 3168, Australia
Titolo Testata:
MUSCLE & NERVE
fascicolo: 3, volume: 24, anno: 2001,
pagine: 372 - 379
SICI:
0148-639X(200103)24:3<372:OTBOM>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOTOR UNITS; MEDIAL GASTROCNEMIUS; CAT GASTROCNEMIUS; MUSCLE FIBERS; SPEED;
Keywords:
axon; conduction velocity; motoneuron; motor unit; tension;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Proske, U Monash Univ, Dept Physiol, Clayton, Vic 3168, Australia Monash Univ Clayton Vic Australia 3168 ton, Vic 3168, Australia
Citazione:
D.L. Morgan e U. Proske, "On the branching of motoneurons", MUSCLE NERV, 24(3), 2001, pp. 372-379

Abstract

Innervation ratios were estimated for motor units supplying superficial lumbrical muscles of the cat after assigning units to one of three types, FF/FI, FR, and S, and estimating their axonal conduction velocity, based on published data. Similarly, unit tensions were converted to muscle fiber number using published values for specific tension and fiber cross-sectional area. A relation was established between axonal area of cross-section and number of fibers innervated which was matched reasonably well by a model of a branching motoneuron with preterminal diameter of 4.28 mum and a daughter-to-parent ratio of 1.48 at each level of branching. It is proposed that the main features of the model are likely to apply to all motoneurons. (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 22:39:40