What neuronal action occurs at the pyramids of the medulla oblongata? what neuronal action occurs at the pyramids of the medulla oblongata? there is a slight drying of brain tissue due to lack of cerebral spinal fluid in this region. the axons of upper motor neurons cross to the opposite side of the brain. cranial nerves attach at this region and cross to the opposite side of the brain. the axons of general sensory neurons relay proprioceptive impulses from the spinal cord to the cerebellum at the pyramids?

The axons of upper motor neuron cross to the opposite site of the brain.

Multipolar neurons are found in the cerebral cortex, amygdala. Pyramidal neurons are usually primary excitation unit of mammalian prefrontal cortex and corticospinal tract. Pyramidal tracts such as the corticospinal tracts and corticobulbar tract motor fibers are contained in the pyramids. The lower limit of pyramids is marked when the fiber crossed or decussate. Most of the fibers of the pyramidal tracts  leave the pyramid in bundles and decussate in the anterior medial fissure of the medulla.