Vertebral Artery Anatomy

Complete or partial vertebral artery duplication. Cervical artery dissection.

Vertebral Arteries Basicmedical Key

The second segment v2 begins from the level of the fifth or sixth cervical vertebra to.

Vertebral artery anatomy. The muscular branches of the vertebral artery arise in the neck and supply the deep muscles of the neck. Vertebral artery in anatomy one of two arteries that begin deep in the neck as the first branches of the subclavian arteries run headward through openings in the side projections of the neck vertebrae enter the skull cavity and join to form the basilar artery qv. The vertebral artery originates from the upper aspect of the initial part of the subclavian artery runs vertically upwards to goes into the foramen transversarium of the transverse process of c6.

Variant anatomy asymmetry due to vertebral arterial hypoplasia absence or termination into pica of one of the vertebral arteries is very common. Vertebral artery supply of the anterior spinal artery also known in this region as the artery of the cervical enlargement yellow via muliple radiculomedullary arteries red. This is particularly true of lower cervical vertebral artery anatomy as it relates to the transverse foramina of c6 and c7.

The vertebral artery may be divided into four parts. Vertebral artery segments the first segment v1 begins at the origin of the subclavian artery and extends to. Also notice presence of lateral spinal pial system purple also supplied by same radiculomedullary vessels.

A condition which arises spontaneously or as the result of trauma where the walls of the artery are split leading to internal bleeding and disruption of blood flow. The first preforaminal part runs upward and backward between the longus colli and. Less commonly known and described in the spine literature are the variations in vertebral artery anatomy in the upper cervical spine around the c1 lateral mass.

The vertebral artery gives off many small branches including spinal branches that supply the spinal cord in the cervical region. The aorta and its principal branches. The spinal branches of the vertebral artery arise in the neck reach the spinal cord via the intervertebral foramina and supply it.

The third extradural or atlantic part issues from the. Ostium may have variable orientation. Subsequently it goes through the foramen transversaria of the upper 6 cervical vertebrae.

The vertebral artery can become blocked off because of a blood clot which can be potentially fatal and lead to stroke. The largest branch of the vertebral artery supplies the cerebellum and is known as the posterior inferior cerebellar artery pica. The third segment v3 traverses the transverse foramen of c2 and terminates as.

The second foraminal part runs upward through the transverse foramina of the c6 to c2 vertebrae.

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