Topographical Representation of Motoneurons in Carnivora Lower Brainstem
食肉动物下脑干运动神经元的地形表征
基本信息
- 批准号:05671506
- 负责人:
- 金额:$ 1.34万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1993
- 资助国家:日本
- 起止时间:1993 至 1995
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the house musk shrew (insectivore), distribution of motoneurons of the trigeminal nerve innervating muscles was examined by a retrograde horseradish peroxidase (HRP) method. Cytoarchitectonically, the trigeminal motor nucleus (TMN) of the shrew was roughly divided into the large dorsolateral division throughout a whole rostrocaudal level of the nucleus, and small ventromedial divisions being in a caudal half of that. In the dorsolateral division, motoneurons of the temporal, masseter and medial pterygoid muscles were localized in dorsal, intermediate and ventral parts, respectively, and distribution are a of the lateral pterygoid and tensor veli palatini motoneurons were almost overlapped each other in the medial part which existed only at a rostral half of the nucleus. The anterior digastric and mylohyoid motoneurons situated respectively in the dorsal and ventral parts of the ventromedial division. The tensor tympani motoneurons was localized in the reticular formation near the lateral lemniscus ventrolateral to the nucleus. Additionaly, number and size of labeled neuron with HRP were measured, and number of muscle-fibers of each muscle was also counted by mascerarating muscle using hydrochloride under a dissection microscope. Ratio of mean muscle-fiber number to a labeled motoneuron of the temporal muscle was 322, masseter 336, medial pterygoid 106, lateral pterygoid 78, anterior digastric 136, mylohyoid 42, tensor veli palatini 29, tensor tympani 3.
用辣根过氧化物酶(HRP)逆行法研究了家麝鼠三叉神经支配肌肉运动神经元的分布。在细胞构筑学上,三叉神经运动核(TMN)大致分为大的背外侧区,遍布整个吻尾水平,小的腹内侧区位于其尾侧的一半。在背外侧区,翼外肌运动神经元分布于背、中、腹侧,翼外肌运动神经元与腭帆张肌运动神经元在内侧部几乎重叠,仅存在于核的吻侧半部。前二腹肌运动神经元和舌骨前运动神经元分别位于腹内侧部的背侧部和腹侧部。鼓膜张量运动神经元定位于靠近外侧丘系腹外侧核的网状结构。此外,还测量了HRP标记神经元的数目和大小,并在解剖显微镜下用盐酸咀嚼肌肉来计数每条肌肉的肌纤维数量。颞肌平均肌纤维数与标记运动神经元的比值为322,其中咬肌336个,翼内肌106个,翼外肌78个,前二腹肌136个,舌骨42个,腭帆张肌29个,鼓室张肌3个。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
植村正憲,和田薫,田畑正志: "下位脳幹運動核における筋支配対応配列-とくに咀嚼筋、顔面筋および舌筋支配について-" 鹿児島大学歯学部紀要. 13. 1-17 (1993)
Masanori Uemura、Kaoru Wada、Masashi Tabata:“下脑干运动核中的肌肉神经支配对应排列 - 特别是咀嚼肌、面部肌肉和舌头肌肉的神经支配 -”鹿儿岛大学牙科学院通报 13. 1-17(。 1993)
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UEMURA Masanori其他文献
UEMURA Masanori的其他文献
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Morphological analysis for interaction of gustatory neural circuits with reward neural circuit
味觉神经回路与奖励神经回路相互作用的形态学分析
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22592041 - 财政年份:2010
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$ 1.34万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The Research of Reciprocal Connections to the Pathway of Gustatory and Rhinencephalons
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17591918 - 财政年份:2005
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Interaction between Gustatory and Olfactory Nerve Fiber-Circuits
味觉和嗅觉神经纤维回路之间的相互作用
- 批准号:
14571739 - 财政年份:2002
- 资助金额:
$ 1.34万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Nerve Fiber-circuits of Gustatory Sence
味觉神经纤维回路
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12671776 - 财政年份:2000
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$ 1.34万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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颅面部功能形态的神经科学研究
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08672133 - 财政年份:1996
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$ 1.34万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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