中文名颈内动脉颈内动脉依其行程分为颈段、岩段、海绵窦段和前床突上段。其中[1] ，海绵窦段和前床突上段合称虹吸部，多呈U形或 V形弯曲，是动脉硬化的好发部位颈内动脉系是脑的动脉系统之一，颈内动脉平甲状软骨上缘水平起自颈总动脉，按其形成，以颅底的颈动脉管外口为界，分为颅外段和颅内段。颅外段又称为颈段，自颈总动脉分叉处至颅底，为颈内动脉各段中zui长的一段。颈内动脉先在颈外动脉的后外侧上行，后转至颈外动脉的后内侧沿咽侧壁达颅底。其特点是：（1）颅外段无分支；（2）起始部有颈动脉窦，为压力感受器；（3）位置深而难以触及。颅内段在血管造影像上分为五段C5段（颈动脉管段、岩骨段或神经节段）：在颞骨岩部的颈动脉管内走行，先向上，后弯向前内，在颈动脉管内口处，隔着硬脑膜与三叉神经节紧邻。此段的特点是：全程大部行于骨性管道内，在入海绵窦处较为狭窄，并与咽鼓管和鼓室紧邻。C4段（海绵窦段）：在后床突附近入海绵窦，稍上升后转为近水平位沿蝶骨体两侧的颈动脉沟呈“S”形前行，达前床突后沿前床突内侧的凹沟弯转向上，移行为前膝段。该段的特点是：在海绵窦内紧贴内侧的蝶窦侧壁，外侧与穿经海绵窦的动眼神经、滑车神经、三叉神经和展神经关系密切。C3段（前膝段或虹吸弯）：在前床突附近，呈“C”形，自前床突内侧弯向后上穿海绵窦顶部的硬脑膜，眼动脉自此段或此段与海绵窦段移行处发出，向前伴视神经经视神经管入眶。C2段（交叉池段或床突上段）：在海绵窦上方的蛛网膜下隙内水平后行，于前穿质下方续为后膝段。C1段（后膝段或终段）：通常指参加Willis环的一段，在后床突前向上至分叉处。此段发出后交通动脉、脉络丛前动脉、大脑前动脉和大脑中动脉。1996年Bout细菌illier等提出颈内动脉新的分段法：以数字（C1－C7）顺血流方向标记颈内动脉全程，并考虑到对神经外科具有重要意义的颈内动脉四周解剖。

Chinese name Internal carotid artery internal carotid artery according to their journey is divided into cervical segment, rock segment, cavernous sinus and anterior segment of the bed. Which [1], cavernous sinus and anterior segment of the bed above the siphon, mostly U-shaped or V-shaped bend, is a good site of atherosclerosis Internal carotid artery system is one of the cerebral artery system, internal carotid artery level The level of thyroid cartilage from the common carotid artery, according to its formation, to the skull base of the external carotid artery as the boundary, divided into extracranial and intracranial segments. Extracranial segment, also known as the cervical segment, from the common carotid bifurcation to the skull base, the longest segment of the internal carotid artery. Internal carotid artery in the external carotid artery after the first upstream, after the transfer to the internal carotid artery along the pharyngeal side of the skull base. Its features are: (1) extracranial segment without branch; (2) the beginning of the carotid sinus, as baroreceptors; (3) deep and difficult to reach. The intracranial segment is divided into five segment C5 segment (carotid artery segment, petrous segment or nerve segment) on the angiographic image: walking in the carotid artery of the petrous petrous bone, first upward, then backward forward, in the carotid artery At the mouth, close to the trigeminal ganglion across the dura. This section is characterized by: Most of the major line within the bony duct, into the cavernous sinus at a more narrow, and Eustachian tube and tympanum immediay. C4 segment (cavernous sinus segment): into the cavernous sinus in the vicinity of the posterior bed, a little upward after the transfer to near horizontal position along the carotid ditch on both sides of the sphenoid body was "S" shaped forward, up to the front of the anterior bed prominence The ditch on the medial side of the diagonal curve turns upward, and the transition is the anterior knee segment. The segment is characterized by: the cavernous sinus close to the medial sphenoid sinus wall, the lateral and the oculomotor nerve through the cavernous sinus, the trochlear nerve, the trigeminal nerve and the spine nerve are closely related. C3 segment (knee segment or siphon curve): in the anterior prominence near the c-shaped, since the medial side of the prominence of the bend after the cavernous sinus at the top of the dural, the segment of the eye artery or section and the sponge Sinus segment issued at the migration, the forward optic nerve with optic canal into the orbit. Section C2 (cross-section or upper part of the bed bump): The level above the cavernous sinus in the subarachnoid space, followed by the anterior corpus continued posterior knee segment. Section C1 (posterior segment or end segment): Usually refers to the segment of the Willis ring, up to the bifurcation in the anterior posterior bed. This section is issued after the traffic artery, choroid plexus artery, anterior cerebral artery and middle cerebral artery. In 1996, Bout et al. Proposed a new segmentation method of internal carotid artery: marking the entire internal carotid artery in the direction of digital (C1-C7) cisternal flow and taking into account the surrounding anatomy of internal carotid artery which is of great significance to neurosurgery.

上一篇：美国binaxnow试剂季节性军团菌尿抗原诊断试纸

下一篇：美国binaxnow试剂沼泽藏有军团菌病菌快速检测卡

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