Pyramid of medulla oblongata
- Pyramid of medulla oblongata
Infobox Brain
Name = PAGENAME
Latin = pyramis medullae oblongatae
GraySubject = 187
GrayPage = 768
Caption = Medulla oblongata and pons. Anterior surface. (Pyramid visible at center.)
Caption2 = Section of the medulla oblongata at about the middle of the olive. (Pyramid visible at bottom center.)
IsPartOf =
Components =
Artery =
Vein =
BrainInfoType = hier
BrainInfoNumber = 702
MeshName =
MeshNumber =
DorlandsPre = p_44
DorlandsSuf = 12683083
The anterior or ventral portion of the medulla oblongata is named the pyramid and lies between the anterior median fissure and the antero-lateral sulcus.
Its upper end is slightly constricted, and between it and the pons the fibers of the abducent nerve emerge; a little below the pons it becomes enlarged and prominent, and finally tapers into the anterior funiculus of the medulla spinalis, with which, at first sight, it appears to be directly continuous.
ee also
* Corticospinal tract (also known as "pyramidal tract")
* Decussation of the pyramids
=Additional
External links
*
* [http://www.csus.edu/org/nrg/carter/NeurosylActive/brainstem/ansopmedro.htm Diagram at csus.edu]
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