A victim of a traffic accident suffered damage to one hall of the spinal cord and developed Brown-Sequard syndromic. What causes motor function disturbance on the damaged side below the site of trauma

Answer options

1. After their cross over the pyrarnidal tracts pass through the lateral funiculi of the spinal cord on the side of the muscles they innervate
2. After their cross over the pyramidal tracts pass through the lateral funiculi of the spinal cord an the opposite
3. Goll, Burdach, and Flechsig tracts are straight, while gowers tract crosses over
4. -
5. The spinothalamic tract crosses over at the level I its entry into the spinal cord and ascends on the opposite