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Morphological Study of the Iris Musculature in Diurnal and Nocturnal Raptors International Journal of Morphology
Coli,Alessandra; Stornelli,Maria Rita; Barsotti,Giovanni; Ceccherelli,Renato; Giani,Eleonora; Lenzi,Carla; Giannessi,Elisabetta.
In literature it is established that the iris musculature consists of striate muscle fibers in birds while in mammals it consists of smooth muscles. Some authors report the presence of smooth muscle tissue also in the iris of some species of birds. In the present study we report on the iris muscle tissues (type of tissue, direction and mean diameter of muscle fibers or cells) in five species of Accipitriformes (diurnal raptors) and four species of Strigiformes (nocturnal raptors) because they show different way of life depending of their predatory behavior. This morphological study was carried out from raptors died or euthanized at the Wild Life Rescue Centre of Sea and Water birds in Livorno (Italy). From histological examination of iris serial radial...
Tipo: Journal article Palavras-chave: Iris; Striated musculature; Smooth musculature; Morphology; Raptors.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200016
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