<prompt> The cerebral peduncle consists of all the following pas exceptCrus cerebriSubstantia nigraTegmentumTectum  <response>: Each half of the midbrain anterior to the aqueduct is called the cerebral peduncle. Each cerebral peduncle is subdivided into a The crus cerebri, anteriorly; b the substantia nigra, in the middle; and c the tegmentum, posteriorlyRef: BD Chaurasia; Volume 3; 6th edition; Brain; Page no: 328 