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題 名 | 初生和成熟沙鼠的輪廓乳頭及其味蕾做形態計量上之研究 |
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作 者 | 楊伊凡; 陳慶源; | 書刊名 | 師大生物學報 |
卷 期 | 28 1993.12[民82.12] |
頁 次 | 頁35-41 |
分類號 | 389.87 |
關鍵詞 | 沙鼠; 輪廓乳頭; 味蕾; 形態計量; Gerbils; Circumvallate papillae; Taste bud; Morphometric study; |
語 文 | 中文(Chinese) |
中文摘要 | 初生沙鼠的輪廓乳頭尚未發育完全。在出生後三天的幼鼠,其輪廓乳頭仍不成熟,此時,乳頭之大小為寬約133±23μm,長約128±17μm,而環溝僅出現在表面淺層的部位,味蕾也尚未分化。在出生後十週之沙鼠的輪廓乳頭已發育成熟,乳頭中央部位有環溝不完全地圍繞,此環溝只出現在左右兩側及後方,前方則與舌體組織相連,如此結構與其他高等哺乳動物不同。成熟的輪廓乳頭其大小寬約152±19μm,長約193±28μm,而環溝的深度為168±25μm。平均每個乳頭有95±26個味蕾,清晰可見的味蕾孔開口朝向環溝的凹槽,由於初生的幼鼠輪廓乳頭尚未發育成熟,味蕾也不發達,所以味蕾並非是促使幼鼠用以尋覓母鼠乳頭及吸吭行為的主要因素。 |
英文摘要 | The circumvallate papillae of the gerbils are poorly developed during the neonatal period. Therefore, in the three-day old gerbils, these papillae are still immature. Their size is about 133 ± 23μm in width and 128 ± 17μm in length. The trench between the invaginated papillary epithelia is only partially appearated in the basal portion. The taste bud is also not yet differentiated in the invaginated trench walls. Henceforth, these papillae are gradually developed and culminated in their growth at tenth week after birth. The mature papilla centrum is found to be separated from the surrounding lingual structures by a trench on its posterior and both sides only, but continued an-teriorly that is different from the general circumvallate papilla of the higher mammal on the view point of structure. The mature papilla size is 152 ±19μm in width and 193±28μm in length. Its trench is 168±25μm in depth. On an average, there are 95 ±26 taste buds developed in each papilla. The conspicuous outlined taste bud has its dis-tinctive taste pore opening toward the trench. Because the lack of the taste bud in the poorly developed circumvallate papillae, the neonatal gerbils are mainly assisted in searching mammillae and suckling behavior with their precocious olfaction and pro-bably other methods. |
本系統中英文摘要資訊取自各篇刊載內容。