Chowdhury Forhad, Haque Mohammod, Sarkar Mainul, Ara Shamim, Islam Mohammod
Dhaka Medical College Hospital, Department of Neurosurgery, and Dhaka Medical College, Department of Anatomy, Dhaka, Bangladesh.
Turk Neurosurg. 2010 Jul;20(3):314-22. doi: 10.5137/1019-5149.JTN.3052-10.2.
This study was done to study the three dimensional anatomy of internal capsule's white fibers completely by cadaveric dissection and its relation to basal ganglia and other related anatomical structures.
Eight formalin fixed cerebral hemispheres were dissected for internal capsule under operating microscope. Klingler's technique of fiber dissection was adopted. The internal capsule was dissected from superiolateral inferior and medial surface of cerebral hemisphere. During and after dissection its relation with basal ganglia and other related structures were studied.
The internal capsule was demonstrated by dissecting fibers of all its parts. Fibers that forms the internal capsule originate from different parts of cerebral cortex and pass through corona radiata that lies in lateral periventricular area and lateral to the caudate nucleus above the upper border of lentiform nucleus. The internal capsule is situated medial to lentiform nucleus and lateral to caudate nucleus and thalamus. Caudally it continues in the midbrain as cerebral peduncle. It has an anterior limb, genu, posterior limb, retrolentiform and sublentiform part. The relation of different parts of internal capsule with surrounding structures were also shown.
Knowledge of the microsurgical anatomy of the internal capsule and other white fibers tracts is essential for neurosurgeons and other neuroscientists.
本研究旨在通过尸体解剖全面研究内囊白质纤维的三维解剖结构及其与基底神经节和其他相关解剖结构的关系。
在手术显微镜下对8个福尔马林固定的脑半球进行内囊解剖。采用克林格勒纤维解剖技术。从脑半球的上外侧、下侧和内侧表面对内囊进行解剖。在解剖过程中和解剖后，研究其与基底神经节及其他相关结构的关系。
通过解剖内囊各部分的纤维，内囊得以显示。构成内囊的纤维起源于大脑皮质的不同部位，穿过位于侧脑室周围区域外侧、尾状核上方、豆状核上缘以上的放射冠。内囊位于豆状核内侧、尾状核和丘脑外侧。在尾侧，它在中脑延续为大脑脚。它有前肢、膝部、后肢、豆状核后和豆状核下部。还展示了内囊不同部分与周围结构的关系。
了解内囊和其他白质纤维束的显微外科解剖结构对神经外科医生和其他神经科学家至关重要。
