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Because the blood vessel is narrow or out-of-the-way, the blood supply shortage but the partial brain organization that make correspond lacks the blood bad die to be called the brain to obstruct( cerebralinfarction).The great majority lacks the blood to obstruct for the white, the minority obstructs the afferent and bad dead of the area, continuing to bleed, becoming the issue of blood to obstruct.Press different cause of disease and be taken bad the mechanism, have the following type familiarly more on the clinic:The brain artery blood bolts to become sex brain to obstruct, bolting to fill sex brain to obstruct to obstruct with brain lacuna .Often know together as to lack the cerebral disease of the guts stroke or out-of-the-ways again in the cultural heritage.Big vein inside the skull or the vein antrum blood pin formation, also can cause brain obstruct, but see less.
The brain blood bolts to become the brain artery blood to bolt to become sex brain to obstruct the brief name to bolt the formation( the cerebral thrombosis) or the brain bloods to bolt for the brain blood, is the outbreak a tallest kind of the rate lacks the guts stroke, about having 70-80% that all outbreaks suffer a stroke the disease.When the brain artery tube wall occurrence disease damage , become the blood to bolt, make official jargon narrow down, even stop up to cause the partial brain organization to lack the bad dead( namely the brain obstruct) of blood, be called the brain blood to bolt.Cause the brain blood bolts to mainly have three factors of the aspects: ①The artery tube wall combines the damage ; ② The blood composition change and( or) bloods flow to change to learn the abnormality; ③ The blood dynamics unusually if the blood speed lead slow or the blood measured low.Among them, take care of the wall disease damage particularly the most important.
The most familiar cause of disease is the artery gruel kind to harden, the companion contain high blood pressure, the high blood pressure and arteries harden to promote mutually.The high blood fat disease, diabetes can accelerate the brain artery to harden etc. the development of the afferent disease damage.The cause of disease that is the next in order is the brain artery inflammation , the former familiar syphilis goes the brain artery cisternae first with seldom seen.The non- particularity brain artery inflammation ccidentally it is thus clear that arrive.The hook carries the helicoid infection and can also cause the artery inflammation inside the skull.The cause of disease that see less has the knot conclude organization disease, big and small afterbirth artery inflammation , congenital and afferent abnormal, tumor, true the red cell to increase the disease, blood high coagulate appearance etc..The artery inside the skull is hardenned the good hair in the brain bottom big blood vessel, brain in the neck of the artery and its branch, the base artery and carotid arteries inside, outside artery crotch.After film inside the artery damage( include the artery nourishment blood vessel) to break, the cholesterol sinks to accumulate in inside the film bottom layer, cause the afferent wall fat transparent change sex, the further fiber increases to living, the artery become hard change the song, the blood wall to increase thick, other visible composition, cellulose...etc. attach to in the blood platelets and bloods damaged rough inside film, the formation artery tube wall blood bolt.The blood bolts the gradual extension, end make artery complete under some conditional influence out-of-the-way.These conditions contain part or the whole body blood pressures lower, the blood infuses to flow the decrease, the blood is slow-moving, the blood glues one degree increment, afferent spasm etc..
Have already know, though the brain artery hardens and can compare for hour to start take place namely in the age, such as not appear the blood of jam the blood vessel to bolt, or the artery only have When the part jam, can take place to decline to deliver sex brain to provide to learn the shortage.When the blood bolt completely jam the artery some one part, the blood bolts and can carry the gradual development toward near heart of artery, thus stopping up more branches, the scope that obstruct gradual extension.It be a thus likely to be pathology that the progress that the brain blood bolts the formation from the forerunner symptom peak suffer a stroke to appear the foundation. |
