elaborate on ascending tracts of spinal cord: 1. anterior and lateral spino thalamic tract, 2. Ventral and dorsal spinocerebellar tract, 3. spinotectal tract, 4. fasiculus dorsolateralis, 5. spinoreticular, 6. spino olivary, 7. spino vestibular, 8. fasciculus gracilis and 9. fasciculus cuneatus. Give the detailed origin, termination, course and its functions respectively.