This Medullary Pyramids diagram (likely brainstem) depicts the ventral medulla oblongata with its paired pyramidal tractscorticospinal fibers descending to decussate at the pyramid level before continuing into the spinal cord for voluntary motor control. It often shows adjacent olives and cranial nerve roots. Essential for understanding upper motor neuron lesions or crossed motor deficits.

Medullary Pyramids Diagram
Posted inOrgans