Nigger. Nigger is a noun in the English language. The word originated as a neutral term referring to black people, as a variation of the Spanish/Portuguese noun negro, a descendant of the Latin adjective niger.iktionary (5.00 / 1 vote) Rate this definition: nigger (Noun). A dark-skinned person, especially a person of, or primarily of, Negro descent. nigger (Noun). A person of Negro descent who acts in an unapproved manner, usually as an archetypical badass.
The ventricles are shown in blue on the following midsagittal section of the brain. The Ventricles CSF is produced mainly by a structure called the choroid plexus in the lateral, third and fourth ventricles.CSF flows from the lateral ventricle to the third ventricle through the interventricular foramen (also called the foramen of Monro).he third ventricle and fourth ventricle are connected to each other by the cerebral aqueduct (also called the Aqueduct of Sylvius). CSF then flows into the subarachnoid space through the foramina of Luschka (there are two of these) and the foramen of Magendie (only one of these).
The roof of the third ventricle is formed by a thin layer of ependyma. The lateral walls are formed mainly by the medial surfaces of the 2 thalami.The lower lateral wall and the floor of the ventricle are formed by the hypothalamus and subthalamus.he Third Ventricle. The third ventricle (in blue) is a narrow vertical cleft between the 2 lateral ventricles. It possesses a roof, a floor and four walls: anterior, posterior and two lateral. The roof is formed by the tela choroidea.