| 唐鑫生,聂刘旺.2009.崇安草蜥舌的显微和超微结构.动物学杂志,44(6):109-112. |
| 崇安草蜥舌的显微和超微结构 |
| Microstructure and Ultrastructure of Tongue in Takydromus sylvaticus |
| 投稿时间：2009-05-07 修订日期：2009-09-01 |
| DOI： |
| 中文关键词: 崇安草蜥 舌 显微结构 超微结构 |
| 英文关键词:Takydromus sylvaticus Tongue Microstructure Ultrastructure |
| 基金项目:安徽省教育厅自然科学基金项目(No.2004kj329) |
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| 中文摘要: |
| 采用显微技术观察了崇安草蜥(Takydromus sylvaticus)舌的显微和超微结构。舌腹面黏膜光滑;背面黏膜粗糙,由丝状乳头和轮廓乳头组成。丝状乳头锥体形,数量较多,排列成行,分布于舌体背面两侧和侧翼的腹面。在舌的横切片上有3～7个轮廓乳头,其表面平整,周围有环形沟,舌腺开口于环形沟中。舌肌肉发达。超微结构显示,舌上皮细胞间具有紧密连接,舌乳头细胞表面具有丰富的微绒毛。舌腺为单管泡状腺,分泌管由单层柱状上皮构成。柱状上皮细胞有两种,一种为分泌细胞,一种为暗细胞。分泌细胞内有典型的分泌颗粒,可协助食物的吞咽。暗细胞内无分泌颗粒,是否与离子分泌以及渗透压调节有关,尚需进一步证实。 |
| 英文摘要: |
| Microstructure and ultrastructure of the tongue in Takydromus sylvaticus was observed. The ventral mucosa is smooth,while the dorsal mucosa is rough,with filiform papilla and circumvallate papilla. The filiform papilla is large and cone-shaped. It is distributed in line,and located in dorsal part and both sides of ventral part of the tongue. In the cross-section,its surface is smooth with a circular ditch,and the tongue gland opens in the ring ditch on the outline of three to seven circumvallate papillae. The muscle of tongue is developed. There exist tight junctions between epithelial cells and rich microvilla on the nipple surface. Tongue gland is simple tubuloacinar. Secretory duct is consisted of simple columnar epithelium. There are two kinds of columnar epithelial cells,secretory cells and dark cells. Secretory cells have typical secretory particles,and the mucilage can be propitious to swallow food. The secretory particles are not found in the dark cells. These dark cells maybe associated with the ion exudation and osmotic pressure regulation,but this needs further experimental verification. |
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