Diencephalon represents
Lateral ventricle
3rd ventricle
4th ventricle
Aquedct
The diencephalon is the pa of brain between the cerebrum and brainstem.The cavity within it is called third ventricleThe pas of diencephalon are:ThalamusMetathalamusEpithalamusSubthalamusHypothalamus(Ref: Vishram Singh textbook of clinical neuroanatomy Second Edition pg -123)
Brain 