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. [ http://en.wikipedia.org/wiki/Rhombencephalon ]
Synonyms: presumptive rhombencephalon
Term information
- BAMS:HB
- EFO:0003440
- CALOHA:TS-2118
- ZFA:0000569
- Wikipedia:Rhombencephalon
- EHDAA2:0001630
- FMA:295640
- TAO:0000569
efo_slim
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].