What Is A Stroke?


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Sudipa Sarkar Profile
Sudipa Sarkar answered
A stroke is a human condition that is described as a cerebral vascular accident featured by crippling disturbance in the brain blood circulation. In general, this is caused because of a burst artery or an artery that is locked up due to a blood clog. This leads to the damage of the brain tissues beyond of that clogged point, hence blood circulation stops. The brain requires a constant and steady blood flow in order to function properly as the blood delivers oxygen and nutrients to different areas of the brain cell. Thus, a clog in the artery leads to non-deliverance of the needful oxygen and nutrients beyond the point of occurrence. The interruption may be of different forms depending on the brain zone that is involved. If small blood vessels are involved in the process, it may lead to hearing impairment to speech hindrance. On the other hand, if large vessels are involved in the process, it may lead to the paralysis of one side of the body.
Amman Aamir Profile
Amman Aamir answered
A stroke is a form of injury to the brain. Another name for it is "apoplexy".
When a stroke occurs, the flow of blood to a part of the brain is
Suddenly cut off. As a result, all the structures connected with that part are injured.
There are several things that can .cause this failure of the blood to reach parts of the brain. A blood vessel may he ruptured and cause a haemorrhage. A dot may form within a blood vessel. This is called L thrombosis". There may be spasm of an artery. Or a blood vessel may become closed off because of a small particle, often a blood dot floating in the blood stream. This is called an "embolus". An embolus is usually linked up with heart disease, but it may occur in other diseases too.
In terms of damage, it does not matter what causes the stroke. That part of the brain through which pass the nerves that control our voluntary motions, our sensations of pain, our temperature, touch, and vision may be damaged.
The most frequent cause of stroke is thrombosis. Strangely enough, a person can have this kind of a stroke after a period of inactivity. For example, a person might wake up in the morning to discover that an arm, or a leg, or even a whole side of the body is useless. Or he may find that he can hardly speak or speak not al ail. People with this kind of stroke have a pretty good chance of recovery, but there is usually some permanent disability.
In treating a stroke, the doctor has to find out what caused it, so he needs a complete history of the illness of the person. People who become crippled in some way by a -stroke can often be rehabilitated: that is trained to regain the use of the function that was crippled. This includes use of muscles and the ability in speak again.

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