延髓

Results:①Excitation of the NVM by L-glut amate,injection of substance P into the nucleus dorsomedialis, n ucleus paraventricularis or rostral ventrolateral medulla,all induce d pressor responses.②NVM pressor responses could be attenuated by preinjection of ［D-Pro2,D-Phe7,D-Trp9］-SP (DPDPDT,a substance P antagonist)bilate rally into the NDM,NPV or RVL,but preinjection of atropine into the RVL had no s uch effect.

结果 ：①L-谷氨酸兴奋NVM、P物质注入背内侧核室旁核或延髓头端腹外侧区均引起升压反应；②NVM升压反应可被双侧NDM、NPV或RVL内预先注射［D- Pro2，D-Phe7，D-Trp9］-P物质衰减，但RVL内注射阿托品无此效应；③酚妥拉明i.v。

Objective: To explore the roles of the caudal ventrolateral medulla in the central anti-hypertensive mechanism.

目的：探讨大鼠尾端延髓腹外侧区在介导可乐定降压机制中的作用。

Previous studies have revealed that the chemosensitive areas of the ventrolateral medullary surface participate in the central chemical regulation on respiration, but the exact location and the mechanism of the central chemoreception are still unknown.

延髓腹外侧表面的呼吸调节化学感受区参与中枢化学感受作用已有许多报道，但经电生理、神经解剖学等多方面的研究，至今尚未找到其化学感受的结构基础，因而其感受机制还不清楚。

All experiments were carried out on 105 normotensive male Sprague-Dawley rats, weighing from 250-350g, anesthetized with urethane and α-chloralose, breathed spontaneously.

头端延髓腹外侧区是心血管交感活动的基本中枢，其神经元不仅参与基础心血管活动的维持，而且能对不同状态下的信息进行整合，从。。。

This approach visualizes the brain stem and the vermis of the cerebellum outlined by the cisterna magna.

这一途径显示脑干和小脑蚓部，其由小脑延髓池描绘出轮廓。

This approach isualizes the brain stem and the ermis of the cerebellum outlined by the cisterna magna.

这一途径显示脑干和小脑蚓部，其由小脑延髓池描绘出轮廓。

Results:Three important MRI feat ures of brain stem gliomas were found:①enlargement of brain stem contour.Using different sequences and planes the precise tumor location could be obtained.Sagittal scan could well display the early stage of brain stem glioma,the tectal glioma and cervicomedullary junction glioma.

结果：MRI表现有以下3个特征：①肿瘤使脑干的外形增大，通过不同序列和断面显示肿瘤的精确部位，矢状面对于显示胶质瘤的早期改变、顶盖部位及延髓颈髓联合部位的胶质瘤具有独特作用。

All rats were sacrificed, and the antrum, thoracal spinal cord,and brain were dissected.

结果实验组杏仁核、延髓、胸髓和胃窦组织c-fos表达较其他两组明显增强（P〈0.05）。

Methods:The depth of the anterior and posterior rims of foramen magnum and the angle between medulla oblongata and upper spinal cord on midsagittal SE or FSE T1WI were measured in 320normal Chinese individuals and in 36patients with basilar impression.

随机选取320例没有颅颈交界区相关的临床症状及体症，MRI扫描无明显颅骨破坏性病变和颅颈交界区畸形的正常国人和36例颅底凹陷症患者的颅脑MRI图像，于正中矢状面SE或FSE T_1WI图像上测量枕大孔前、后缘中点深度和延髓-上颈髓轴线夹角数值。正常人按性别、年龄分16组，每组20例。

Purpose:To determine the normal ranges of the depth of the anterior and posterior rims of foramen occipital magnum and the angle between medulla oblongata and the upper spinal cord on midsagittal MRI in normal Chinese idividuals and patients with basilar impression,to study their clinical significance and to provide normal reference in diagnosing basilar invagination by MRI.

目的：利用颅脑正中矢状面MRI自旋回波或快速自旋回波T_1WI图像测量颅颈交界区正常的中国人和颅底凹陷症患者枕大孔前、后缘中点深度和延髓-上颈髓轴线夹角数值，评价其正常值范围，探讨其发育规律及临床意义，为MRI诊断颅底凹陷症提供直接的参考标准。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失