Magnetic Resonance Imaging (MRI) Practice Test

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The common carotid artery bifurcates into the internal and external carotid artery at the level of?

C2-C3 disc space
C4-C5 disc space
C3-C4 disc space
C5-C6 disc space

The correct answer is: C3-C4 disc space

The common carotid artery bifurcates into the internal and external carotid arteries at the level of the C3-C4 disc space. This anatomical landmark is crucial for understanding the vascular supply to the head and neck. The bifurcation typically occurs around the level of the third cervical vertebra, which is significant for both surgical interventions and imaging interpretations. During imaging procedures such as MRI, recognizing this bifurcation point helps in accurately identifying vascular structures and assessing for potential pathologies. Additionally, knowing that this bifurcation occurs around the C3-C4 level aids practitioners in planning approaches for biopsies, catheter placements, and other interventions in the cervical region. The other vertebral levels mentioned in the options do not align with the typical anatomical location for this bifurcation, which further solidifies C3-C4 as the correct answer.