lateral funiculus

Lateral to the fasciculi cuneatus is the lateral funiculus.

Each lateral funiculus transmits the contralateral corticospinal and spinothalamic tracts.

This tract is found in the lateral funiculus, a bundle of nerve roots in the spinal cord.

Having crossed the middle line, they pass down in the posterior part of the lateral funiculus as the lateral corticospinal tract.

These fibers cross through the anterior white commissure to form the Anterior lateral system in the lateral funiculus.

A hemisection of the spinal cord results in transection of both ipsilateral dorsal column and lateral funiculus; this produces Brown-Sequard syndrome.

Lateral vestibulospinal fibers descend uncrossed, or ipsilateral, in the anterior portion of the lateral funiculus of the spinal cord.

It is found in the dorsolateral quadrant of the lateral funiculus, in the lateral tegmentum of the medulla, pons and midbrain.

In the spinal cord, it travels through the lateral funiculus of the spinal cord in the company of the lateral corticospinal tract.

Most of these fibers cross over to the contralateral lateral funiculus via the anterior white commissure and proceed up the spinal cord to synapse with neurons in the superior cerebellar peduncle.

In the lower part of Medulla oblongata 80 to 85% of these fibers decussate (pass to the opposite side) and descend in the white matter of the lateral funiculus of the spinal cord on the opposite side.

These efferent axons cross just ventral to the anterior tegmental decussation and descend through the midbrain to the spinal cord, where the rubrospinal tract, which they make up, runs ventral to the lateral corticospinal tract in the lateral funiculus.