SCANNING ELECTRON-MICROSCOPY OF CHANNEL CATFISH OLFACTORY LAMELLAE

被引:39
作者
CAPRIO, J [1 ]
RADERMANLITTLE, R [1 ]
机构
[1] FLORIDA STATE UNIV,DEPT BIOL SCI,TALLAHASSEE,FL 32306
关键词
D O I
10.1016/0040-8166(78)90002-2
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
The olfactory lamellae of the channel catfish (Ictalurus punctatus) are composed of sensory and indifferent (non-sensory) epithelia organized into two distinct regions on both surfaces of each lamella. The smaller sensory region located adjacent to the midline raphe has fewer cilia per unit surface area than the indifferent epithelium and contains the olfactory neurons whose ciliated dendritic terminals occur at the epithelial surface. The indifferent epithelium, comprising the greater surface area of the olfactory lamella, is covered with a dense mat of non-sensory cilia. Fractured carbon dioxide critical point dried lamellar tissue revealed the underlying cellular structure. The lamellae are composed of two layers of epithelium enclosing a thin stromal layer. Olfactory receptors were observed in the fractured tissue only within the sensory epithelium. © 1978.
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页码:1 / 9
页数:9
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