1.头颈部断面解剖学基础教程.ppt

Superior to the internal capsule, the projection fibers running to and from the cerebral cortex fan out to form the corona radiata. 内囊与基底核和丘脑的关系 （半卵圆中心） 内囊与基底核和丘脑的关系 内囊与基底核和丘脑的关系 Deep within the cerebral white matter lies a group of nuclei collectively called the basal nuclei. They are the caudate, lentiform, Claustrum and amygdala nuclei. 3. 基底核 左侧半球内的基底核和丘脑 4. 脑室 Lateral Ventricles * BASIS OF SECTIONAL ANATOMY OF HEAD Max Song Department of Anatomy, Tongji Medical College of Huazhong University of Science and Technology 颞骨 一、几个特殊的颅骨 蝶骨 前面观 后面观 筛骨 颚骨 二、副鼻窦 三、颅底内、外面观复习 四、脑的结构 1. 端脑的外形 岛叶 Different areas of the cerebral cortex communicate extensively with one another, and with the brain stem and spinal cord via the many axons that form the cerebral white matter. Most of these fibers are myelinated and bundled into large tracts. These fibers and tracts are classified as (1) commissural, (2) association, and (3) projection, according to where they run. 2. 端脑的白质 A. Commissural Fibers The commissural fibers run between the two hemispheres. Specifically, they interconnect corresponding gray areas of the right and left hemispheres, allowing the two hemispheres to function together as a coordinated whole. The largest commissure is the corpus callosum, a broad band that lies superior to the lateral ventricles, deep within the longitudinal fissure. 胼胝体 扣带 外侧纵纹 内侧纵纹 穹窿 穹窿和前连合 B. Association Fibers Association fibers connect different parts of the same hemisphere. Short association fibers connect neighboring cortical areas, whereas long association fibers connect widely separated cortical lobes. 上纵束 豆状核 钩束 下纵束 弓状纤维 C. Projection Fibers Projection fibers either descend from the cerebral cortex to more caudal parts of the CNS or ascend to the cerebral cortex from lower regions of the CNS. It is through projection fibers that sensory information reaches the cerebral cortex, and motor instr