A major bundle of nerve fibres connecting motor areas of the cerebral cortex with the lower motor neurons of the spinal cord, and forming the pyramid on the ventral surface of the medulla oblongata.
Origin
Mid 19th century.
Definition of pyramidal tract in US English:
pyramidal tract
noun
Anatomy
A major bundle of nerve fibres connecting motor areas of the cerebral cortex with the lower motor neurons of the spinal cord, and forming the pyramid on the ventral surface of the medulla oblongata.