Basilar artery explained

Basilar artery
Latin:arteria basilaris
Width:335px
Branchfrom:Vertebral arteries
Branchto:Pontine arteries
anterior inferior cerebellar (AICA)
Paramedian arteries
superior cerebellar arteries
terminal posterior cerebral arteries
Supplies:Pons, and superior and inferior aspects of the cerebellum

The basilar artery (U.K.: ;[1] [2] U.S.: [3]) is one of the arteries that supplies the brain with oxygen-rich blood.

The two vertebral arteries and the basilar artery are known as the vertebral basilar system, which supplies blood to the posterior part of the circle of Willis and joins with blood supplied to the anterior part of the circle of Willis from the internal carotid arteries.[4] [5] [6]

Structure

The diameter of the basilar artery range from 1.5 to 6.6 mm.[7]

Origin

The basilar artery arises from the union of the two vertebral arteries at the junction between the medulla oblongata and the pons between the abducens nerves (CN VI).[8]

Course

It ascends along the basilar sulcus of the ventral pons. It divides at the junction of the midbrain and pons into the posterior cerebral arteries.

Branches

Its branches from caudal to rostral include:

Clinical relevance

A basilar artery stroke classically leads to locked-in syndrome.

External links

Notes and References

  1. Web site: BASILAR | meaning in the Cambridge English Dictionary. dictionary.cambridge.org.
  2. Web site: basilar - WordReference.com Dictionary of English. www.wordreference.com.
  3. Web site: Definition of basilar | Dictionary.com. www.dictionary.com. 14 April 2023.
  4. Web site: Basilar artery | Radiology Reference Article | Radiopaedia.org. Jeremy. Jones. Radiopaedia.
  5. Book: Purves . Dale . Neuroscience . 2012 . Sunderland, Mass. . 9780878936953 . 737–738 . 5th.
  6. Book: Carpenter . Malcolm B. . Core text of neuroanatomy . 1985 . Williams & Wilkins . Baltimore . 0683014552 . 406–410 . 3rd.
  7. Pico F, Labreuche J, Gourfinkel-An I, Amarenco P . September 2006 . Basilar artery diameter and 5-year mortality in patients with stroke . Stroke . 37 . 9 . 2342–7 . 10.1161/01.STR.0000236058.57880.03 . 16888278 . 5862145 .
  8. Book: Byrne. James. Tutorials in endovascular neurosurgery and interventional neuroradiology. limited. 2012. Springer. Berlin. 37–38. Chapter 2. Cranial arterial anatomy. 9783642191541.