True about 3rd ventricle is
3rd ventricleCavity of DiencephalonMedian cleft between 2 thalamic nucleiConnected to lateral ventricle Foramen of munroConnected to 4th ventricle aqueduct of sylviusFloor contains Optic chiasma, mammillary body, Infundibulum (pituitary stalk), Tuber cinereumPosterior wall : Pineal body, posterior commissure and cerebral aqueduct