该分段法各段的解剖分界明确，共分为七段：C1颈段(Cervical segement)，C2岩段（Petrous segment），C3破裂（孔）段（Lacerum segment），C4海绵窦段（Cavenous segement），C5床段（Clinoidal segment），C6眼段（Opt细菌almic segement）和C7交通段（Communicating segment ）[1] 。C1颈段：颈段起于颈总动脉分叉水平，终止于颈动脉管颅外口。C2岩段：这段颈内动脉位于颈动脉管内，起于颈动脉管颅外口，终止于破裂孔后缘。C3破裂（孔）段：破裂段起于颈动脉管末端，动脉越过孔部，但不穿过这个孔，在破裂孔的垂直管内上升，向着海绵后窦，止于岩舌韧带上缘。C4海绵窦段：此段始于岩舌韧带上缘，止于近侧硬膜环。C5床段：此段起于近侧硬膜环，止于远侧硬膜环。C6眼段：该段起于远侧硬膜环，止于后交通动脉起点的紧近侧。C7交通段：交通段起于紧靠后交通动脉起点的近侧，止于颈内动脉分叉处。动眼神经（oculomotor nerve）为运动性神经，含有躯体运动和内脏运动两种纤维。躯体运动纤维起于中脑动眼神经核，一般内脏运动纤维起于动眼神经副核。动眼神经自脚间窝出脑，紧贴小脑幕缘及后床突侧方前行，进入海绵窦侧壁上部，再经眶上裂眶，立即分为上、下两支。上支细小，支配上直肌和上睑提肌。下支粗大，支配下直、内直和下斜肌。由下斜肌支分出一个小支叫睫状神经节短根，它由内脏运动纤维（副交感）组成，进入睫状神经节交换神经元后，分布于睫状肌和瞳孔括约肌，参与瞳孔对光反射和调节反射。动眼神经麻痹时，出现上眼睑下垂，眼球向内、向上及向下活动受限而出现外斜视和复视，并有瞳孔散大，调节和聚合反射消失。常见的病细菌有动眼、滑车与外展神经本身炎症而致的麻痹，急性感染性多发性神经炎，继发于头面部急、慢性炎症而引起海绵窦血栓形成。

The anatomical boundaries of each segment of the segmentation method are clear and divided into seven sections: Cervical segement, Petrous segment, Lacerum segment, Cavenous segment, segement, Clinoidal segment, Optics almic segement and C7 Communicating segment [1]. C1 neck: the neck from the common carotid artery bifurcation level, terminating in the carotid artery cranial mouth. Section C2: This section of the internal carotid artery located in the carotid artery, the carotid artery in the cranial mouth, terminating in the posterior edge of the rupture. C3 Rupture (Pore): The rupture begins at the end of the carotid artery. The artery passes through the hole but does not pass through this hole. It rises in the vertical tube of the ruptured hole toward the posterior sinus of the sponge, stopping at the upper edge of the tongue. C4 cavernous sinus segment: This segment began in the upper edge of the tongue ligament, ending in the proximal dural ring. C5 bed segment: This section from the proximal dural ring, ending in the distal dural ring. C6 segment: the segment from the distal dural ring, just after the start of the posterior communicating artery close to the side. C7 traffic section: the traffic section close to the starting point of the artery immediay after the carotid artery at the bifurcation. Oculomotor nerve is a motor nerve that contains both somatic and visceral motility fibers. Somatic motor fibers start in the midbrain optic nerve nucleus, the general movement of visceral fibers from the oculomotor nerve nucleus. Occurred from the foot of the oculomotor nerve, close to the cerebellar margin and the posterior lateral approach, into the upper cavernous sinus wall, and then through the supraorbital fissure, immediay divided into upper and lower two. Upper small, dominate the rectus and levator muscle. Under the branch thick, dominated the next straight, straight and lower oblique. From the inferior oblique muscular branch of a small branch called the ciliary ganglion short root, which consists of visceral motility fibers (parasympathetic), into the ciliary ganglion neurons, distributed in the ciliary muscle and pupil sphincter, involved in pupillary pairs Light reflection and reflection adjustment. Oculomotor nerve paralysis, the upper eyelid ptosis, eyeball inward, upward and downward mobility constraints appear exotropia and diplopia, and dilated pupils, regulation and polymerization disappear. Common disease bacteria have moving eyes, block and outreach nerve inflammation itself caused by paralysis, acute infectious polyneuritis secondary to head and face acute and chronic inflammation caused by cavernous sinus thrombosis, supraorbital fissure and orbital apex Syndrome, intracranial aneurysms, intracranial tumors, other such as tuberculosis, mold, syphilis and purulent inflammation caused by skull base meningitis. Due to different bacteria, the pathogenesis is also different, such as direct compression of the tumor caused by the primary inflammation.

上一篇：美国binaxnow试剂水份感染军团菌IgG抗体检测试剂盒

下一篇：军团菌诊断试剂盒浴室传播军团菌血清检测试剂盒

返回列表>>

广州健仑生物科技有限公司(www.jianlun45.com)热门产品:喹诺酮类检测试剂盒,西尼罗河检测试剂,基孔肯雅热试剂,寨卡检测试剂,疫病核酸试剂
地址：广东省广州市番禺区石楼镇清华科技园创启路63号A2栋101 Email：service@jianlun.com
ICP备：粤ICP备11063766号 GoogleSitemap 技术支持：化工仪器网管理登陆返回首页