QuestionSBA
QuestionChoice
Correct. The basilar artery is formed by the union of both vertebral arteries and ascends within the anterior midline groove on the brainstem. It gives branches to supply the pons and cerebellum, then terminates as the two posterior cerebral arteries.
10009140
a
Basilar artery
QuestionChoice
Incorrect. The anterior spinal artery arises from branches from each vertebral artery which unite in the anterior median fissure of the spinal cord. They descend through the foramen magnum of the occipital bone alongside the anterior surface of the spinal cord.
10009143
d
Anterior spinal artery
QuestionChoice
Incorrect. The internal carotid arteries ascend up the neck within the carotid sheath on each side after the bifurcation of the common carotid artery. They then enter the carotid foramina of the temporal bone and emerge superior to the cartilage filling the foramen lacerum, before travelling superiorly into the cavernous sinuses.
10009142
c
Internal carotid artery
QuestionChoice
Incorrect. The posterior spinal arteries arise from either the vertebral arteries or posterior inferior cerebellar arteries. They descend through the foramen magnum of the occipital bone alongside the posterior surface of the spinal cord.
10009144
e
Posterior spinal artery
QuestionChoice
Incorrect. The vertebral arteries ascend through the foramina transversaria of the cervical vertebrae C1-6 then enter the cranium via the foramen magnum of the occipital bone. Both vertebral arteries unite to form the basilar artery in the midline.
10009141
b
Vertebral artery
Concept
Chapter
2693
5312
Arteries of the brain
Topic
196
Neuroanatomy
14375
Picture
1735
30 - Arteries of the brain (basilar).png
images/tkw9awg31682950635828.jpg
images/tkw9awg31682950635828_256.jpg
images/tkw9awg31682950635828_512.jpg
nigKFQQJR21pOabHiIbbaAmHgGAH
Topic
196
Neuroanatomy
Identify the labelled structure.

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a