Stroke is a condition that occurs when the blood supply to a part of the brain is suddenly interrupted. In brain tissue, the lack of blood flow causes a series of biochemical reactions, which led to a series of biochemical reactions, which can damage or kill nerve cells in the brain. Death of brain tissue can lead to loss of function that is controlled by the brain tissue can lead to loss of function that is controlled by the network. If you had a stroke, and to survive, sometimes you will experience paralysis in the limbs, loss of some memory or speech. In recent years more and more popular term brain attack. This term corresponds to the well known term "heart attack". Stroke occurs because the blood vessels branch hampered by emotions. Emboli can be either cholesterol or air.
Stroke is divided into two types: ischemic stroke and Hemorrhagic stroke. In ischemic stroke, blood flow to the brain stops because atherosclerosis (cholesterol buildup in blood vessel walls) or a blood clot to the brain. Most of the patients or 83% had this type of stroke.
1. Hemorrhagic Stroke
In Hemorrhagic stroke, ruptured blood vessels thereby inhibiting normal blood flow and blood seeping into an area in the brain and damage. Nearly 70% of these strokes occur in people with hypertension.
2. Ischemic Stroke
In ischemic stroke, blockage can occur along the arteries leading to the brain. Blood to the brain is supplied by the internal carotid artery and two two vertebral arteries. These arteries are branches of the aortic arch heart (aortic arch).
An atheroma (fatty endapat) can form in the carotid arteries that reduces blood flow. The situation is extremely serious because all the blood vessels in normal carotid arteries supply blood to the brain most. Fatty deposits can also be detached from the walls of the arteries and blood flow in, then clog smaller arteries.
Carotid arteries and the vertebral artery and its branches could also be clogged by a blood clot from elsewhere, such as of the heart or a valve. This kind of stroke called a cerebral embolism (obstruction = emboli, cerebral = brain blood vessel), which most often occurs in patients who had undergone cardiac surgery and patients with heart valve abnormalities or arrhythmias (especially atrial fibrillation).
Fat embolism is a rare cause of stroke. Emboli of fat formed when fat from a ruptured spinal released into the bloodstream and eventually joined in an artery.
Stroke can also occur when an infection causes inflammation or narrowing of the blood vessels leading to the brain. Drugs (such as cocaine and amphetamines) can also narrow the blood vessels in the brain and cause a stroke.
Low blood pressure could suddenly reduces blood flow to the brain, which usually causes a person to faint. Stroke can occur if low blood pressure is very severe and chronic. This happens when a person has lost a lot of blood from an injury or surgery, a heart attack or a heart rhythm disorder.
Search
Popular Posts
- Relationship Cholesterol With Dyslipidemia
- Cholesterol Relationship with Coronary Heart Disease
- Cholesterol relationship with Stroke
- Cholesterol relationship with high blood pressure
- Obstruction of Blood Vessel Formation
- 7 Ways to keep cholesterol balance
- Cholesterol In Fat
- Cholesterol In Blood Work Clogging
- Understanding Cholesterol Numbers
- Clever Ways to Treat Cholesterol