Relationships between pyramidal and extrapyramidal systems.
D000818:Animals; D001479:Basal Ganglia / Q000033:anatomy & histology; D002415:Cats; D003655:Decerebrate State; D005116:Extrapyramidal Tracts / Q000033:anatomy & histology*; D011712:Pyramidal Tracts / Q000033:anatomy & histology*