outside of the pyramidal tracts.
Outside of the pyramidal tracts. ... (18 Nov 1997) ... 
(eks″trә-pĭ-ram´ĭ-dәl) outside the pyramidal tracts.
Type: Term Pronunciation: eks′tră-pi-ram′i-dăl Definitions: 1. Other than the pyramidal tract. See: extrapyramidal motor system
Latin extra = outside, and pyramidal (q.v.), hence descending nerve tracts that do not traverse the pyramids of the medulla.
pertaining to or involving nerve tracts other than the pyramidal tracts, esp. the corpus striatum and its associated structures. · located outside the pyramidal tracts.