Veterinary Gross Anatomy-II

PONS

• The pons is located between the medulla oblongata and the cerebral peduncles.
• It is marked off from these ventrally by the anterior and the posterior transverse grooves. When viewed ventrally it is elongated, convex in both directions and presents a median groove, which lodges the basilar artery.

• Laterally a large part of it curves dorsally and backward into the base of the cerebellum forming the middle cerebellar peduncle.
• The dorsal surface is blended on each side with the overlying anterior cerebellar peduncle. The central free part forms the anterior part of the floor of the fourth ventricle.
• Pons contains nuclei, which form the cell stations in the cortico-pontocerebellar pathway, which effects coordination between the motor cortex and cerebellum.