Posterior median fissure

Posterior median fissure

Infobox Brain
Name = PAGENAME
Latin = sulcus medianus posterior medullae oblongatae, fissura mediana posterior
GraySubject = 187
GrayPage = 767


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DorlandsPre = s_28
DorlandsSuf = 12769164
The posterior median fissure (dorsal or dorsomedian fissure, or posterior median sulcus) is a narrow groove; and exists only in the closed part of the medulla oblongata; it becomes gradually shallower from below upward, and finally ends about the middle of the medulla oblongata, where the central canal expands into the cavity of the fourth ventricle.


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