Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Fibre type regionalization of forelimb muscles in two mammalian species, Galea musteloides [Rodentia, Caviidae) and Tupaia belangeri (Scandentia, Tupaiidae), with comments on postnatal myogenesis
Autore:
von Mering, F; Fischer, MS;
Indirizzi:
Inst Spezielle Zool & Evolut Biol Phyleti Museu, D-07743 Jena, Germany Inst Spezielle Zool & Evolut Biol Phyleti Museu Jena Germany D-07743 any
Titolo Testata:
ZOOMORPHOLOGY
fascicolo: 2, volume: 119, anno: 1999,
pagine: 117 - 126
SICI:
0720-213X(199910)119:2<117:FTROFM>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL GASTROCNEMIUS-MUSCLE; OPOSSUM DIDELPHIS-VIRGINIANA; FIBER-TYPE COMPOSITION; MOTOR UNITS; MEDIAL GASTROCNEMIUS; FUNCTIONAL-ANATOMY; VASTUS LATERALIS; SKELETAL-MUSCLE; CAT HINDLIMB; LOCOMOTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Fischer, MS Inst Spezielle Zool & Evolut Biol Phyleti Museu, Erbertstr 1, D-07743 Jena, Germany Inst Spezielle Zool & Evolut Biol Phyleti Museu Erbertstr 1 Jena Germany D-07743
Citazione:
F. von Mering e M.S. Fischer, "Fibre type regionalization of forelimb muscles in two mammalian species, Galea musteloides [Rodentia, Caviidae) and Tupaia belangeri (Scandentia, Tupaiidae), with comments on postnatal myogenesis", ZOOMORPHOL, 119(2), 1999, pp. 117-126

Abstract

To investigate structural differences between propulsory and antigravity muscles, the spatial distribution of slow (type I) and fast (type II) musclefibres in forelimb muscles of two species of small mammals was studied, Galea musteloides and Tupaia belangeri. Serial sections through complete forelimbs were prepared. Following histochemical fibre typing, the forelimbs were reconstructed three-dimensionally using product design software. Most forelimb muscles of both species showed a homogenous distribution of type I fibres. In the supraspinatus and triceps brachii (capita longum et laterale)muscles, however, a segregation of fibre types into "fast" superficial areas and "slow" deep regions was observed. Slow regions contained at least 60% type I fibres and were positioned along intramuscular extensions of the tendons of insertion. The functional implications of fibre type regionalization are discussed. An analysis of intramuscular fibre type distribution during postnatal myogenesis revealed no significant differences in muscle fibre differentiation between altricial and precocial juveniles. Differences inlocomotor ability probably arise from heterochronic development of connective tissue components (endo- and perimysium).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 07:12:52