Terminology Service for NFDI4Health
myelencephalon
Go to external page
http://purl.obolibrary.org/obo/UBERON_0005290
The posterior part of the developing vertebrate hindbrain or the corresponding part of the adult brain composed of the medulla oblongata and a portion of the fourth ventricle; as well as the glossopharyngeal nerve (CN IX), vagus nerve (CN X), accessory nerve (CN XI), hypoglossal nerve (CN XII), and a portion of the vestibulocochlear nerve (CN VIII).[BTO,WP]. [ http://purl.obolibrary.org/obo/BTO_0000758 http://en.wikipedia.org/wiki/Myelencephalon ]
Term info
Label
myelencephalon
Subsets
uberon_slim
depicted by
http://upload.wikimedia.org/wikipedia/commons/5/54/EmbryonicBrain.svg
dubious for taxon
http://purl.obolibrary.org/obo/NCBITaxon_7955
external definition
The posterior of the two brain vesicles formed by specialization of the rhombencephalon in the developing embryo, it comprises the medulla oblongata. [TFD][VHOG]
has obo namespace
uberon
has related synonym
myelencephalon (medulla oblongata)
homology notes
The early development of most vertebrate brains is similar (...). The zebrafish neural tube follows the same basic differentiation pattern as the mammalian neural tube (reference 1); The brain develops from three embryonic enlargements of the neural tube, which later differentiate into five regions. A forebrain differentiates into telencephalon and diencephalon. The midbrain, or mesencephalon, remains undivided. The hindbrain divides into the metencephalon and myelencephalon. Cavities within the brain enlarge to form a series of interconnected ventricles (reference 2).[well established][VHOG]
id
UBERON:0005290
terminology notes
the terms metencephalon and myelencephalon are only meaningful in mammals and birds - Neuroanatomy of the Zebrafish Brain. Note that its not clear if this refers to the developing medulla oblongata - MA (adult) has two distinct classes