SBA — Single Best Answer · Review
Question 676
Anatomy → Region
Classification
Question
SSBAQuestion Header
Anatomy
Question Stem
The posterior inferior cerebellar artery arises directly from which vessel before formation of the basilar artery?
Options
A
Internal carotid artery
B
Middle cerebral artery
C
Vertebral artery
D
Posterior cerebral artery
E
Anterior cerebral artery
Explanation
Before the two vertebral arteries fuse intracranially to form the basilar artery, each vertebral artery gives rise to a posterior inferior cerebellar artery.
Option Validity
A) The internal carotid supplies the anterior circulation.
B) The middle cerebral artery is a continuation of the internal carotid system.
D) Posterior cerebral arteries arise distally from the basilar circulation.
E) The anterior cerebral artery arises from the internal carotid artery.
Further Reading
Saxena - MRCOG-1 Basic Sciences, Chapter 2: Anatomy, Printed p.10.