cerebral crus cerebral crus the cerebral crus (crus cerebri) is the anterior portion of the cerebral peduncle which contains the motor tracts, travelling from the cerebral cortex to the pons and spine. the plural of which is cerebral crura. cerebral crusobtuse section (perpendicular to the brainstem) through the superior colliculus showing label for cerebral crus at lower left.detailsidentifierslatincrus cerebrimeshd065843neuronames539neurolex idbirnlex_1218ta98a14.1.06.005 a14.1.09.259ta25880fma72464anatomical terms of neuroanatomy in some older texts this is called the cerebral peduncle but presently it is usually limited to just the anterior white matter portion of it. additional images human brain frontal (coronal) section