Anatomy and function
The vertebral arteries unite to form the basilar artery. It ascends along the ventral surface of the pons and usually divides into the two posterior cerebral arteries.
Where to look in the model
The midline red trunk along the ventral brainstem.
What this view does not establish
The basilar artery is part of the posterior-circulation input. Pontine perforators and several cerebellar arteries are omitted.
Open in 3DSources and precision
Cortex uses the FreeSurfer fsaverage5 template surface, with 10,242 vertices per hemisphere. Functional references use selected Destrieux sulcal and gyral parcels. Deep structures use fsaverage aseg segmentations. The Sereno2020 cerebellar research surface preserves folial geometry, but comes from another specimen; its assembled placement is schematic, without medical registration across templates. Arterial paths are manually drawn teaching schematics, not CTA/MRA reconstructions.
An educational schematic prototype for understanding spatial relationships. Item-by-item independent neuroanatomical review is pending. Functional highlights are not results of an individual examination and do not support individual diagnosis or treatment decisions.