Cause Of Cerebrovascular Disease

Tuesday, August 2, 2011

In the healthy structure of the anatomy, the carotid artery to form the main blood supply to the brain. After control, stroke of the voluntary muscles may be lost, depending on the type of stroke victims are facing. Stroke can also occur due to embolism or due to rupture of blood vessels. Emboli block small arteries in the brain, causing dysfunction occurs. Spontaneous rupture of blood vessels in the brain causing a hemorrhagic stroke.

Other forms of cerebrovascular disease including aneurysms. In women with damaged collagen, weak branching points of arteries causing a bulge with a very thin cover that can tear the endothelium to bleed easily with a minimal rise in blood pressure. It can also occur with defects caused by the deposition of cholesterol mainly in the capillary network of hypertensive subjects with or without dyslipidemia. If the bleeding occurs in this process, the resulting effect is a hemorrhagic stroke in the form of subarachnoid hemorrhage, intracerebral hemorrhage or both.

In the main structure, the carotid artery disseminate part of the cerebrum. Common carotid artery divides into internal and external cartoid arteries. Internal carotid artery into the anterior cerebral artery and middle central artery. ACA sends blood to the frontal and parietal a small part of the occipital lobe. MCA is the largest branch of the internal carotid artery. From artery Basillar two posterior cerebral arteries. Branch Basillar and PCA supplies the occipital lobe, brainstem, and cerebellum.

Ischemia is the loss of blood flow to the focal area of ​​the brain. This initial process is quite fast. The duration of a stroke is usually 2-15 minutes. One side of the face, hand, or arm may swell. During this time, people can lose control of the conscious and unconscious. Brain deficit may increase for a maximum of 72 hours. Deficits are not complete in all cases. Including stable neurologic recovery period, to enhance, brain function. Stable is the period in which no re-supply of nutrients, is also not lost. Increase, depending on the code of the hospital, generally means that the gain control and function of arterial blood flow in the brain consistent. Cartoid arteries connected to the vertebral arteries. It branched out into meningenial cerebellar artery and posterior, which supplies the back of the brain.

Also, during ischemia, interneurons weaken, causing the amount sufficient to perform an important function to attend. The neuroglis become congested or maintain the loss for cerebrovascular accident. If the number of impulses cease, then life itself would cease and the victim may have entered the stage of clinical death. Weakened nerve pathways, thereby reducing action potential. Neural arc, which generally consists of sensory and motor neurons, also weakened. The muscles become paralyzed, in some cases for life. Paralysis also includes a weakening of receptors in the body, except for improvements made. Cerebrovascular damage to the brain is what makes it difficult for the receptors to receive and transmit impulses of neurons. Chemical reaction is then transmitted to the body creates poor reflexes. Meninges which also protects the brain and spinal cord are very weak, allowing the victim to suffer a large transmission of disease or unstable growth or maintenance if the victim is not in a resting position.

During the stage of paralysis, spinal canal is not much to do with the eternal condition of cerebrovascular disease, both in time can shorten the life of a victim who suffered due to supply nutrients that are weakened in the transmission during cerebrovascular disease. Descending and up the channel will generally be cut during cerebrovascular disease, which does impulses down the wire the brain. This is known as an anesthetic in minor cases.

In a healthy body, cerebrospinal fluid (also known as CSF) can also weaken cortoid plexus, the capillary network of the brain. Some types of hydrocephalus ("water" or CSF in the brain) can be treated using shunt or brain shunt, which involves inserting a hollow tube (or shunt) through clogged channels so that CSF can be used to dry the other parts of the body. The skin surface area of ​​the dermatome is regulated by the spinal cord. During a stroke, it may be damaged.

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