bas·i·lar ar·ter·y

[TA]

formed by union of the intracranial portions of the two vertebral arteries; runs along the clivus in the subarachnoid space from the lower to the upper border of the pons, where it bifurcates into the two posterior cerebral arteries; branches, anterior inferior cerebellar artery [TA], pontine arteries [TA], mesencephalic arteries [TA], superior cerebellar artery [TA], and posterior cerebral artery [TA].

Synonym(s): arteria basilaris [TA]

Farlex Partner Medical Dictionary © Farlex 2012

basilar artery

An artery in the base of the brain formed by the union of the right and left vertebral arteries, which courses along the clivus from the lower to upper borders of the pons, and bifurcates into the posterior cerebral arteries. The basilar supplies the pons, vertebral arteries, and provides branches to the cerebrum and cerebellum.

bas·i·lar ar·te·ry

(bas'i-lăr ahr'tĕr-ē) [TA]

Formed by union of the intracranial portions of the two vertebral arteries; runs along the clivus in the pontine cistern of the subarachnoid space from the lower to the upper border of the pons, where it bifurcates into the two posterior cerebral arteries; branches, anterior, inferior, cerebellar, labyrinthine, pontine, mesencephalic, and superior cerebellar.
Synonym(s): arteria basilaris [TA] .

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

basilar artery

An important artery formed from the junction of the two vertebral arteries that run up through the side processes of the vertebrae of the neck. The basilar artery runs up in a groove on the front surface of the PONS to supply most of the BRAINSTEM and CEREBELLUM and then joins the arterial circle, the circle of Willis, on the base of the brain.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

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References in periodicals archive

These comprised 2 o 4 branches which arise from each side of the basilar artery. They run almost parallel to one other and supply the ventrolateral aspect of the pons.

Morphological Configuration and Topography of the Brain Arterial Supply of the One-humped Camel (Camelus dromedarius, Linnaeus 1758)/Configuracion Morfologica y Topografia del Suministro Arterial del Encefalo del Camello de una Joroba (Camelus dromedarius, Linnaeus 1758)

The vessel wall images of basilar artery acquired using T2-weighted TSE protocol at the two different scan sessions were evaluated and scored for image quality by an observer with 4 years of experience in neuroradiology, who was blinded to the subject identity and scan session of each patient.

Interstudy reproducibility of dark blood high-resolution MRI in evaluating basilar atherosclerotic plaque at 3 Tesla

Patency of the basilar artery and tip, left PCA, and posterior communicating artery; the thin arrows indicate the superior cerebellar arteries, with normal appearance.

Uncommon Association of Two Anatomical Variants of Cerebral Circulation: A Fetal-Type Posterior Cerebral Artery and Inferred Artery of Percheron, Complicated with Paramedian Thalamomesencephalic Stroke--Case Presentation and Literature Review

In addition to the sub-arachnoid blood and skull base fracture, there was also a hypoattenuating area adjacent to the basilar artery in the prepontine cistern compatible with hyperacture hemorrhage into the already present subarachnoid blood.

Basilar artery transection after closed head trauma

Futatsuya et al., "Basilar artery migraine: reversible ischemia demonstrated by Tc-99m HMPAO brain SPECT," Clinical Nuclear Medicine, vol.

Vestibular Migraine: Clinical Challenges and Opportunities for Multidisciplinarity

The CT-angiography (CTA) and digital subtraction angiography (DSA) showed multiple cerebral aneurysms at the site of bifurcation of right middle cerebral artery, A1 segment of left anterior cerebral artery, anterior communicating artery, left posterior communicating artery, and basilar artery bifurcation (Figure 1).

Variant PTA Terminating in Cerebellar Artery, Associated with Multiple Aneurysms

The basilar artery is less frequently implicated as a cause due to the anatomical location.

IMMINENT PATHOLOGY IN MICROVASCULAR DECOMPRESSION FOR IDIOPATHIC TRIGEMINAL NEURALGIA

Furthermore, 35%-40% of ischemic strokes are considered LVOs, which are composed of internal carotid artery, middle cerebral artery (MCA), and basilar artery occlusion.

Stent retrieval devices and time prove beneficial in large vessel occlusions: a synopsis of four recent studies for mechanical retrieval and revascularization

The presence of canal in clivus might interfere with neurosurgical operations in the clival region and possibly provoke symptoms of the basilar artery, as well as of the basilar plexus.2 In a study, bony canal was found on the lower half of the clival surface in 3 out of 100 adult cranial bases studied and named inferior median clival canal" to this anatomical variation.3

UNUSUAL FINDINGS ON OCCIPITAL BONE OF DRY SKULL OF A PAKISTANI ADULT

Two patients (4.7%) had basilar artery insufficiency as a result of long-standing cervical syndrome.

Vertigo in elderly patients: a review of 164 cases in Brazil