The<unk>  is a bend in the axis of the embryological central nervous system (the neuraxis). This<unk>  marks the junction between the metencephalon and the myelencephalon. The division of the rhombencephalon (the early hindbrain) into the metencephalon and the myelencephalon occurs at the 7th week of development. In the mature brain, the metencephalon forms the pons and cerebellum, whilst the myelencephalon forms the medulla oblongata.
Pontine flexure
Pterygomandibular raphe
Cerebral crus
Anterior commissure
Lateral sulcus
Inferior cerebellar peduncle
Cerebral peduncle
Intervertebral foramina