英文人體系統(tǒng)解剖ppt課件-資料下載頁
2025-05-26 00:11本頁面
【正文】 ery 小腦上動(dòng)脈 ? Posterior cerebral artery 大腦后動(dòng)脈 Posterior cerebral artery ? Cortical branches: supply medial and inferior surfaces of temporal lobe and occipital lobe ? Central branches: supply dorsal thalamus, medial and lateral geniculate bodies, hypothalamus and subthalamus Cerebral arterial circle ( circle of Willis ) ? Formation: formed by anterior municating artery, both anterior cerebral arteries, internal carotid arteries, posterior municating arteries, and posterior cerebral arteries ? Position: lies on sella turcica around optic chiasma, tuber cinereum and mamillary bodies Blockage Area of oxygendeprives brain Thrombus Plaque Subarachnoid hemorrhage Microaneurysm Lenticulostriate arteries Intracerebral hemorhage Arteriovenous malformation Veins of brain Superficial cerebral veins ? Drain blood from cortex and subcortical medullary substance and empty into adjacent sinuses of dura mater Veins of brain ? Deep cerebral veins: drain deeper parts of hemispheres, basal nuclei, internal capsule, diencephalon and choroid plexus, ultimately form great cerebral vein which enter straight sinus Blood vessels of spinal cord Arteries of spinal cord ? Two sources ? Anterior and posterior spinal arteries ? Branches of segmental arteries: radicular arteries of posterior intercostals arteries, lumbar arteries, and lateral sacral arteries ? Damage area: T1~T4,ventral part of L1 ? vascular ring ( vasocorona ) Blood vessels of spinal cord Spinal veins: drain into internal vertebral venous plexus
職業(yè)教育相關(guān)推薦
鄂ICP備17016276號(hào)-1