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理學院
生命科學專業學院—生命科學系
生物學報
生物學報
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/148
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search.filters.author.李明忠
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search.filters.author.李琦玫
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search.filters.author.林金盾
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search.filters.author.童麗珠
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search.filters.subject.Periplaneta americana
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search.filters.subject.Methylene blue
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search.filters.subject.SEM
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search.filters.subject.Sensilla
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search.filters.subject.Sensory neuron
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美洲蟑螂翅上感覺毛和感覺神經元的形態及其分佈情形
(
國立臺灣師範大學生命科學學系
,
2007-12-??
)
李明忠
;
李琦玫
;
林金盾
;
童麗珠
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本文證明美洲蟑螂的雙翅表面分佈著許多感覺毛。由掃瞄式電子顯微鏡觀察結果,我們發現美洲蟑螂翅膀上共有硬棘型、剛毛型、細毛型、短毛型、短錐型、長錐型及腔錘型等七種感覺毛。各感覺毛在翅上的分佈不盡相同,其中五種分佈在前翅的背面,三種分佈在前翅的腹面,六種分佈在後翅的背面,而在後翅腹面則幾乎沒有感覺毛。各感覺毛的數量也有差異,前翅背面以剛毛型最多,前翅腹面以短毛型較多,而後翅背面以長錐型最普遍。此外,利用甲基藍對翅膀染色,發現前、後翅內散佈著許多感覺神經元,依外型分為單極、雙極和多極等三類。由此可推測,美洲蟑螂的翅膀不單只有飛行的功能,可能還可藉由翅膀上的感覺毛來感受周遭環境的變化,並經由感覺神經元將訊息傳入中樞以調控行為。
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