This happens as cholesterol builds up on the walls of the arteries. Also, too much salt intake can raise the blood pressure. Arteries carry oxygenated blood; veins carry de-oxygenated blood. Arteries have much thicker muscular wall of muscle and elastic fibres. Arteries have narrow passageway for blood; veins have a wider passageway. Arteries have higher blood pressures. Extra info. When looking at a phrase like this, it is easiest to break it down into individual words, until you become fluent in reading medical terminology.
Atherosclerotic refers to the build up of atheroma, cholesterol or fat in the arteries, that leads to the passageway through the artery becoming narrow.
Calcification is the build up of calcium, causing the artery to harden. Intracranial means within the cranium Skull. Internal Carotid Arteries are major arteries that supply the brain. So this phrase means, there are fat and calcium salt deposits within some major arteries to the brain, that have caused the arteries to become more narrow and harden.
It is moving in the arteries toward the rest of the body. When the Arteries dilate they become bigger. When the become bigger the blood has less resistance and so your blood pressure goes down.
Log in. Conditions and Diseases. Cardiovascular Health. See Answer. Best Answer. Study guides. Q: What happens if arteries narrow? Write your answer Related questions. What happens when arteries narrow? What can cause narrow arteries? Does cholesterol narrow arteries? What in cigarettes causes the arteries to narrow? J Am Coll Cardiol. PMID: pubmed. Genest J, Libby P. Lipoprotein disorders and cardiovascular disease. Philadelphia, PA: Elsevier; chap Libby P. The vascular biology of atherosclerosis.
Marks AR. Cardiac and circulatory function. Goldman-Cecil Medicine. Final recommendation statement: statin use for the primary prevention of cardiovascular disease in adults: preventive medication.
Updated November 13, Accessed January 28, Updated by: Michael A. Editorial team. Atherosclerosis is a common disorder.
Watch this video about: Atherosclerosis. Exams and Tests. Screening should begin between ages 20 to 35 for men and ages 20 to 45 for women. Repeat testing is not needed for five years for most adults with normal cholesterol levels. Repeat testing may be needed if lifestyle changes occur, such as large increase in weight or a change in diet. More frequent testing is needed for adults with a history of high cholesterol, diabetes, kidney problems, heart disease, stroke, and other conditions A number of imaging tests may be used to see how well blood moves through your arteries.
Doppler tests that use ultrasound or sound waves Magnetic resonance arteriography MRA , a special type of MRI scan Special CT scans called CT angiography Arteriograms or angiography that use x-rays and contrast material sometimes called "dye" to see the path of blood flow inside the arteries. Lifestyle changes will reduce your risk of atherosclerosis. Things you can do include: Quit smoking : This is the single most important change you can make to reduce your risk of heart disease and stroke.
Avoid fatty foods: Eat well-balanced meals that are low in fat and cholesterol. Include several daily servings of fruits and vegetables. A narrowing may be due to pathology within the artery, in the artery wall or from outside of the artery.
Atherosclerosis is the most common cause of arterial narrowing. The formation of atheromatous plaques within the wall of the artery bulges into the lumen and partially reduces blood flow to target organs.
Atherosclerosis is progressive — it develops slowly over time. If left untreated, the plaque can grow to a size that significantly impairs the flow of blood. In addition, rupture of the plaque and the formation of a blood clot may then completely occlude the artery.
An embolus or thrombus may occur suddenly and the signs and symptoms of the occlusion may be evident within seconds or minutes, depending on the site.
Depending on the size of the embolus or thrombus, the flow of blood may be partially or completely blocked. Atherosclerosis develops within the wall of the artery while an embolus or thrombus develops inside the lumen of the artery. Atherosclerosis is more likely to affect large to medium sized arteries whereas and embolus or thrombus tends to cause a significant blockage in medium to small arteries.
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