![Mesencephalon, Metecephalon, & Myelencephalon Mesencephalon, Metecephalon, & Myelencephalon](http://web.archive.org./web/20110907082608im_/http://i.ytimg.com/vi/TDHndj7Qg4g/0.jpg)
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- Published: 08 Dec 2009
- Uploaded: 05 Apr 2011
- Author: lmnguyen88
The myelencepalon develops from the primary vesicular structure called the rhombencephalon (or hindbrain), which is present in all vertebrate embryos. The rhombencephalon normally begins its differentiation into the myelencephalon and the metencephalon at approximately 5 weeks of gestational development in humans. Evolutionarily, the myelencephalon is the area of the brain which is the most ancestral, eventually controlling visceral mechanisms (basic bodily functions) such as breathing, heart and blood vessel activity, digestions, and peristalsis.
Category:Developmental biology
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