The pyramidal decussation marks the border between the spinal cord and the medulla oblongata.

Function

The medullary pyramids contain the motor fibers of the pyramidal tracts - the corticospinal and corticobulbar tracts.

Clinical significance

Whiplash as a result of a car accident can lead to brainstem injuries that affect the pyramids at the medulla oblongata. These pyramid injuries are usually a result of a dislocation at the occiput or spinal level C1. Injuries to

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