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>Qualitative and quantitative freeze-fracture studies on olfactory and respiratory epithelial surfaces of frog, ox, rat, and dog
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Qualitative and quantitative freeze-fracture studies on olfactory and respiratory epithelial surfaces of frog, ox, rat, and dog
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机译：Qualitative and quantitative freeze-fracture studies on olfactory and respiratory epithelial surfaces of frog, ox, rat, and dog
A comparison of the necklaces of sensory olfactory, and non-sensory nasal respiratory cilia of four vertebrate species (frog, ox, rat and dog) shows that the olfactory cilia have 7±1 (mean±standard deviation) strands in the three mammalian species and 6±1 strands in the frog; for the respiratory cilia these values are 5±1 and 4±1. This function- and species-dependency of ciliary necklace strand numbers is supported by a review of the literature. Necklaces show no other structural differences. Necklace strand densities range from 25–33 strands/μm. In both sensory and non-sensory cilia ciliogenesis is preceded by the formation of necklace strands. Sometimes cilia do not develop properly, as demonstrated by the presence of necklace-like structures in the membranes of olfactory dendritic endings and respiratory axonemal agg
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