9-Animation of brain folding

The adult derivations of each secondary brain vesicle are color-coded as illustrated in earlier images. The neural tube bends at the midbrain, pontine, and cervical flexures and continues to fold in stereotypic patterns well into the fetal period. Space constraints in the skull cause the majority of the growing brain to be displaced posteriorly, over the brainstem. The end of the animation shows the relationships between the cerebral cortex and the deep areas of the brain and brainstem. The secondary brain vesicles give rise to the following structures:

Telencephalon: cerebral cortex, basal ganglia (caudate, putamen, globus pallidus), basal forebrain nucleus, hippocampus
Diencephalon: thalamus, hypothalamus, posterior pituitary, retina
Mesencephalon: midbrain
Metencephalon: pons, cerebellum
Myelencephalon: medulla