首都医科大学学报 ›› 1994, Vol. 15 ›› Issue (1): 9-14.

• 论著 • 上一篇    下一篇

大鼠翼内肌运动神经元的定位及形态学研究

吴金英1, 张致身2, 鲁厚祯2   

  1. 1. 北京医学专科学校解剖学教研室;2. 首都医学院解剖学教研室
  • 收稿日期:1992-07-13 修回日期:1900-01-01 出版日期:1994-01-15 发布日期:1994-01-15

Study on Cell Body Location and Morphology of Medial Pterygoid Muscles in Trigeminal Motor Nucleus of the Rat

Wu Jinying1, Zhang Zhishen2, Lu Houzhen2   

  1. 1. Department of Anatomy, Beijing Medical School;2. Department of Anatomy, Capital Institute of Medicine
  • Received:1992-07-13 Revised:1900-01-01 Online:1994-01-15 Published:1994-01-15

摘要:

将CT-HRP向大鼠右侧翼内肌多点注射后,在注射同侧脑桥三叉神经运动核(Vmot)内见到逆行标记细胞.Vmot略呈长卵形,标记细胞近乎贯穿核的全长,Vmot吻侧各平面标记细胞位于腹外侧,中部诸平面居外侧和腹外侧,尾侧各平面居外侧,以中部诸平面数量最多.标记细胞多数为多角形,少数呈三角形、梭形,个别细胞呈圆形,大、中、小不等.胞体长径在16~52μm之间,均值为30.85±6.71μm;短径在8~32μm之间,均值为19.18±5.20μm;长径、短径均为单峰正偏态分布.

关键词: 翼内肌, 三叉神经运动核, CT-HRP, 大鼠

Abstract:

CT-HRP has been injected in the medial pterygoid rnuscle in adult rat(200~250 g body weight)to identify the cell of origin for the muscle endings. The labelled motoneurons in the ipsilateral trigeminal motor nucleus were observed. The motor neurons labelled with CT-HRP were approximately distributed throughout trigeminal motor nucleus. In the rostral level of the nucleus the labelled neurons were distributed in ventral-lateral part, in the middle level in lateral and ventral-lateral part and in the caudal level in lateral part. The size of the labelled motoneurons were estimated by measuring their diameters. The average long diameter of labelled cell bodies was 30. 85±6.71μm, ranging from 16~52μm. The average short diameter of labelled perikaryons was 19. 18±5.20 μm, ranging from 8~32μm. These results have been discussed.

Key words: medial pterygoid muscles, trigeminal motor nucleus, CT-HRP, rat

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