13. Four of the five pathways listed below are descending m…
13. Four of the five pathways listed below are descending motor pathways associated with the “extra-pyramidal” system which involuntarily controls skeletal muscle. Which descending motor pathway below is the only pyramidal system pathway listed? a. vestibulo-spinal pathway originating in the cerebellumb. cortico-spinal pathway originating in the primary motor cortexc. rubro-spinal pathway originating in the cerebellumd. tecto-spinal pathway originating in the mesencephalone. reticulo-spinal pathway originating in the brain stem