投射束

The objectives of this study were to elucidate the normal stage of connectional development in human visual pathway so that the effects of the abnormal connection in human might be understood.

包括视网膜输出至外侧膝状体的M细胞和P细胞；视交叉的发育；膝距束终末内生长至初级视皮质；视网膜投射至顶盖前核和上丘通路的发育过程，提供胚胎中枢视觉通路连续动态形态学超微结构内容，动态观察发育性结构与人类视觉功能之间的关系。

RYK's expression is closely related to the corticospinal tract projection during its development stage.

RYK的表达与皮质脊髓束神经通路在脊髓中的发育投射有密切关系。

Objective To study the expression pattern of RYK in the pathway of developmental corticospinal tract projection and provide hints for further study on RYK's function involved in this processes.

目的 观察RYK在皮质脊髓束发育投射通路中的表达情况，为进一步研究RYK在其中的功能提供重要线索。

Position: a thick lamina of white matter lying between caudate nucleus, thalamus and lentiform nucleus

掌握基底核的组成、内囊的概念、分部及主要投射纤维束。

In order to observe the influences of the descending projections from the subnucleus reticularis dorsalis on the neurons in the spinal cord and caudal spinal trigeminal nucleus,by using an immunocytochemical method,we investigated the c-fos expression within spinal cord and Vc after kainic acid microinjection into the SRD of the rat.

为了观察起自延髓网状背侧亚核的下行投射对脊髓和三叉神经脊束核尾侧亚核神经元活动的影响，将微量海人藻酸注入大鼠SRD中，致SRD神经元兴奋，在SRD下行通路的作用部位引起c-fos的表达。

Our observation indicates that capsaicin as a nociceptive chemical irritant can selectively activate primary afferent C-fibers to release SP and Glu from their central terminals in the superficial dorsal horn. It seems that the release of SP and Glu acting on NK-1 and NMDA receptors results secondarily in the activation of dorsal horn neurons, transmitting nociceptive information to supraspinal structures.

以上结果表明辣椒素作为一种伤害性的刺激源，可选择性兴奋C类传入纤维，引起其分布于脊髓背角浅层内的末梢大量释放SP和Glu，通过相应受体兴奋背角伤害性感受神经元，包括上行脊-丘束投射神经元，将痛觉信息传递至脑。

A light source with reflectors that projects a beam of light in a particular direction.

装有能投射到某一特定方向一束光的反射镜的灯。

A light source with reflectors that projects a beam of light in a particular direct .

装有能投射到某一特定方向一束光的反射镜的灯。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。