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 following is a step-by-step illustration of how the valves function normally in the left ventricle: 1  After the left ventricle contracts, the aortic valve closes and the mitral valve opens, to allow blood to flow from the left atrium into the left ventricle.he closure of the tricuspid valve prevents blood from backing into the right atrium and the opening of the pulmonary valve allows the blood to flow into the pulmonary artery toward the lungs. Left Ventricle. Left Ventricle: The left ventricle receives oxygenated blood as the left atrium contracts.