<prompt> Diencephalon representsLateral ventricle3rd ventricle4th ventricleAquedct  <response>: The diencephalon is the pa of brain between the cerebrum and brainstem.The cavity within it is called third ventricleThe pas of diencephalon are:ThalamusMetathalamusEpithalamusSubthalamusHypothalamusRef: Vishram Singh textbook of clinical neuroanatomy Second Edition pg -123 