The<unk>  is a posterior section of the developing metencephalon which can be recognized transiently within the vertebrate embryo. It extends posteriorly from the roof of the fourth ventricle to dorsal neuroepithelial cells. The<unk>  can be divided into eight structural units based on rhombomeres 1-8 (r1-r8), which can be recognized at early stages of hindbrain development. Producing granule cells and five brainstem nuclei, the<unk>  plays an important role in developing a complex cerebellar neural system.<unk> s
Rhombic lip
Oblique cord
Meckelian groove
Sternal cleft
Clitoral hood
Kernohan's notch
Oral torus
Nuchal cord