Editing Brainstem (section)

===Pontomedullary junction===
The pons meets the medulla at the pontomedullary junction.<ref name="Mercier">{{cite journal |last1=Mercier |first1=PH |last2=Brassier |first2=G |last3=Fournier |first3=HD |last4=Picquet |first4=J |last5=Papon |first5=X |last6=Lasjaunias |first6=P |title=Vascular microanatomy of the pontomedullary junction, posterior inferior cerebellar arteries, and the lateral spinal arteries. |journal=Interventional Neuroradiology |date=30 March 2008 |volume=14 |issue=1 |pages=49–58 |doi=10.1177/159101990801400107 |pmid=20557786|pmc=3313705 }}</ref> This region is supplied by the joining of the [[Basilar artery|basilar]], [[vertebral artery|vertebral arteries]]. The [[posterior inferior cerebellar artery]] also joins from which a large number of perforating arteries arise. Lateral spinal arteries also emerge to supply the posterior surface of the medulla oblongata.<ref name="Mercier"/>