Medullary pyramids (brainstem)

（重定向自Pyramidal decussation）

Section of the medulla oblongata at the level of the decussation of the pyramids.

The medullary pyramids are paired white matter structures of the brainstem's medulla oblongata that contain motor fibers of the corticospinal and corticobulbar tracts – known together as the pyramidal tracts. The lower limit of the pyramids is marked when the fibers cross (decussate).

单词	Pyramidal decussation
释义	Pyramidal decussation 英语百科 Medullary pyramids (brainstem) （重定向自Pyramidal decussation） The medullary pyramids are paired white matter structures of the brainstem's medulla oblongata that contain motor fibers of the corticospinal and corticobulbar tracts – known together as the pyramidal tracts. The lower limit of the pyramids is marked when the fibers cross (decussate).
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