What does the anterior corticospinal tract innervate?

The anterior corticospinal tract sends fibers mainly to the trunk or axial muscles. The control is both ipsilateral and contralateral. Therefore, trunk muscles are generally bilaterally cortically innervated.

What is the function of the anterior corticospinal tract?

Function. The anterior corticospinal tract is primarily responsible for gross and postural movement of the trunk and proximal musculature 3.

What organs structures do the corticospinal tracts innervate?

The corticospinal tract carries motor signals from the primary motor cortex in the brain, down the spinal cord, to the muscles of the trunk and limbs.

Where does the anterior corticospinal tract enter the spinal cord?

The anterior corticospinal tract (also called the ” Bundle of Turck ”) emerges from the un-decussated fibers of the corticospinal tract, at the level of the bulbomedullary junction. The UMN axons descend in the anterior funiculus of the spinal cord. At their spinal cord level of innervation, the axons cross over to the contralateral side.

How are nerves involved in the control of the bladder?

Nerves carry signals from the brain to the bladder and sphincter. Overactive bladder. Damaged nerves may send signals to the bladder at the wrong time, causing its muscles to squeeze without warning. The symptoms of overactive bladder include. urinary frequency—defined as urination eight or more times a day or two or more times at night

What causes damage to the lateral corticospinal tract?

The lateral corticospinal tract can suffer damage in a variety of ways. The most common types of injury are central cord syndrome, Brown-Sequard syndrome, and anterior spinal cord syndrome. The corticospinal tract controls primary motor activity for the somatic motor system from the neck to the feet.[1]

Where do the corticospinal and corticobulbar tracts diverge?

As the tracts descend through the crus cerebri, they travel ventrally and become separated by transverse pontocerebellar fibers. It is at this level, the two tracts begin to diverge. The corticonuclear fibers decussate and go towards their respective cranial nerve nuclei.