Question

The arteries leading to Brian's brain are becoming clogged. Briefly describe the effects that these clogged arteries would have on Brian's brain, and hence on Brian.

Correct answer would be marked brainliest and wrong answers would be reported

Answer 1

Answer:

Carotid artery disease occurs when fatty deposits (plaques) clog the blood vessels that deliver blood to your brain and head (carotid arteries). The blockage increases your risk of stroke, a medical emergency that occurs when the blood supply to the brain is interrupted or seriously reduced.

Explanation:

Intracranial stenosis is a narrowing of the arteries inside the brain. Similar to carotid stenosis in the neck, it is caused by a buildup of plaque in the inner wall of the blood vessels. This narrowing of the blood vessels causes decreased blood flow to the area of the brain that the affected vessels supply.

Answer 2

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Intracranial stenosis is a narrowing of an artery inside the brain. A buildup of plaque (atherosclerosis) inside the artery wall reduces blood flow to the brain. Atherosclerosis that is severe enough to cause symptoms carries a high risk of stroke and can lead to brain damage and death. Treatments aim to reduce the risk of stroke by controlling or removing plaque buildup and by preventing blood clots.

To understand arterial stenosis, it is helpful to know how blood circulates to the brain (see Anatomy of the Brain). Blood is pumped from the heart and carried to the brain by two paired arteries, the internal carotid arteries and the vertebral arteries (Fig. 1). The internal carotid arteries supply the anterior (front) areas and the vertebral arteries supply the posterior (back) areas of the brain. After passing through the skull, the right and left vertebral arteries join together to form a single basilar artery. The basilar artery and the internal carotid arteries communicate with each other in a ring at the base of the brain called the Circle of Willis. The arteries most likely to be affected by stenosis are the internal carotid artery (ICA), the middle cerebral artery (MCA), the vertebral arteries, and the basilar artery