INVESTIGADORES
SCHLEICH Cristian Eric
artículos
Título:
Functional morphology of the middle ear of Ctenomys talarum (Rodentia: Octodontidae)
Autor/es:
SCHLEICH, C.E, BUSCH, C
Revista:
JOURNAL OF MAMMALOGY
Referencias:
Año: 2004 vol. 85 p. 290 - 290
ISSN:
0022-2372
Resumen:
The middle ear of the solitary subterranean rodent Ctenomys talarum was studied. The most significant features observed were the enlarged middle-ear cavity, a round and larger eardrum without pars flaccida, no connection between malleus and the tympanic bone, partial fusion of malleus with incus, a nearly flat stapedial footplate, absence of stapedial artery, reduced tensor tympani, and absence of stapedial muscle. Some of these features are shared with unrelated subterranean rodents like Spalax ehrenbergi and geomyids, possibly as adaptations for low-frequency hearing.Ctenomys talarum was studied. The most significant features observed were the enlarged middle-ear cavity, a round and larger eardrum without pars flaccida, no connection between malleus and the tympanic bone, partial fusion of malleus with incus, a nearly flat stapedial footplate, absence of stapedial artery, reduced tensor tympani, and absence of stapedial muscle. Some of these features are shared with unrelated subterranean rodents like Spalax ehrenbergi and geomyids, possibly as adaptations for low-frequency hearing.Spalax ehrenbergi and geomyids, possibly as adaptations for low-frequency hearing.