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).
CSF then flows through the cerebral aqueduct (aqueduct of Sylvius or mesencephalic aqueduct) into the 4th ventricle. The 4th ventricle is located in the hindbrain. From the 4th ventricle the CSF may flow down the central canal of the spinal cord, or circulate in the subarachnoid space. The central canal of the spinal cord is in direct communication with the 4th ventricle. Most CSF escapes from the ventricular system at the hindbrain Foramen of Luschka (lateral apertures) into the subarachnoid space.