The rhombencephalon (or hindbrain) is a developmental categorization of portions of the central nervous system in vertebrates. The rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres. In the human embryo eight rhombomeres can be distinguished, from caudal to rostral: Rh7-Rh1 and the isthmus (the most rostral rhombomere). A rare disease of the rhombencephalon, 'rhombencephalosynapsis' is characterized by a missing vermis resulting in a fused cerebellum. Patients generally present with cerebellar ataxia. The caudal rhombencephalon has been generally considered as the initiation site for neural tube closure.

TODO - unify naming conventions

The embryonic rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres. Rhombomeres Rh7-Rh4 form the myelencephalon that will give the medulla oblongata. Rhombomeres Rh3-Rh1 form the metencephalon that will form the pons and the cerebellum[NPX:PDR].

presumptive rhombencephalon

uberon

future hindbrain, rhombencephalon, embryonic rhombencephalon

UBERON:0007277

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

• hindbrain