What Happens If The Basilar Artery Is Damaged?

What causes a tear in the basilar artery?

A stroke that occurs in the brainstem is either caused by a blood clot or hemorrhage.

In some cases, a brainstem stroke may be the result of an injury to an artery as a result of sudden head or neck movement.

Similar to risk factors for stroke, causes of a basilar artery stroke include the following: Smoking..

Which artery is the major source of blood to the midbrain?

The internal carotid arteries branch to form two major cerebral arteries, the anterior and middle cerebral arteries. The right and left vertebral arteries come together at the level of the pons on the ventral surface of the brainstem to form the midline basilar artery.

What is the basilar tip?

The basilar artery is part of the blood supply system for the brain and central nervous system. It is formed where the two vertebral arteries join at the base of the skull. The basilar artery carries oxygenated blood to the cerebellum, brainstem, and occipital lobes.

What is a basilar artery aneurysm?

Over 90% of aneurysms occur in the circle of Willis and in the proximal middle cerebral artery. An aneurysm is caused by a focal weakening and thinning of the arterial wall. Rupture of an aneurysm can result in subarachnoid hemorrhage but it can also produce intracerebral hemorrhage and necrosis.

Which artery supplies the lungs with blood?

The bronchial arteries carry oxygenated blood to the lungs as part of the general systemic circulatory system. Bronchial arteries respond to stimuli, as do the other systemic arteries (dilation in response to hypoxia). Conversely, the pulmonary arteries constrict to hypoxia.

Is the basilar artery intracranial?

Intracranial stenosis, also known as intracranial artery stenosis, is the narrowing of an artery in the brain, which can lead to a stroke. … Basilar artery, which is formed where the right and left vertebral arteries join in the skull.

What is the function of the basilar artery?

Abstract. The basilar artery (BA) serves as the main conduit for blood flow through the posterior circulation. It directly supplies the brainstem and cerebellum and provides distal blood flow to the thalami and medial temporal and parietal lobes.

What is a basilar artery stroke?

Basilar artery infarct or occlusion results from the obliteration of blood supply to the posterior circulation or vertebrobasilar system of arteries to the brain. Approximately 20%-25% of all acute strokes occur in the posterior circulation. The most common causes are atherosclerosis or thromboembolism.

What happens if the vertebral artery is blocked?

Vertebral Artery Stenosis These arteries supply blood to the brainstem and the cerebellum. Like carotid artery stenosis, vertebral artery stenosis is highly dangerous and can prevent oxygen from reaching the brain. When the brain doesn’t get enough oxygen, a stroke, or even death, can occur.

Which two arteries fuse to form the basilar artery?

The internal carotid artery divides into the anterior and middle cerebral arteries. The paired vertebral arteries fuse at the caudal border of the pons to form the basilar artery.

Which artery is most important for speech and language functioning?

The middle cerebral artery (MCA) is a critical artery which has an extensive clinical significance.

How many arteries feed the brain?

twoThere are two paired arteries which are responsible for the blood supply to the brain; the vertebral arteries, and the internal carotid arteries. These arteries arise in the neck, and ascend to the cranium.

What does the basilar artery branch into next?

The paired superior cerebellar arteries branch from the basilar artery more superiorly, just prior to the terminal branching of the basilar artery into the right and left posterior cerebral arteries. The superior cerebellar arteries supply the superior aspect of the cerebellum, as the name would suggest.

How do you tear your basilar artery?

In these cases, the mechanism of the traumatic rupture of the basilar artery is thought to be overstretching due to hyperextension of the head, and intoxication, drowsiness, or both may have interfered with the decedents’ ability to protect themselves; thus, the hyperextension of the head may have been rather forceful.

Which artery is known as artery of cerebral thrombosis?

The basilar artery is a vital vessel contributing to the posterior cerebral circulation.

What is the longest vein in the body?

Great Saphenous VeinDid you know that your Great Saphenous Vein is the longest vein in the human body? Extending from the top of your foot to the upper thigh and groin, THIS vein is the major culprit that causes Varicose Veins.

What is the main artery that carries blood from your legs to your heart?

The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.