Keel (bird anatomy) Keel (bird anatomy) A keel or carina (plural carinae) in bird anatomy is an extension of the sternum (breastbone) which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs. The keel provides an anchor to which a bird's wing muscles attach, thereby providing adequate leverage for flight. Keels do not exist on all birds; in particular, some flightless birds lack a keel structure. Historically, the presence or absence of a pronounced keel structure was used as a broad classification of birds into two orders: Carinatae (from "carina", "keel"), having a pronounced
Quik Is the Name Rap Songs chart. The song became his most successful and highest charting single to date. The album's third and final single, "Quik Is The Name", was released on November 11, 1991. The single did not manage to chart. Alex Henning of Rhapsody wrote that "Quik's debut set the groundwork for the G-funk era, largely due to the success of "Tonite." Much like Warren G, Quik focuses less on violence and more on mind-altering substances, ladies and cold chillin'. The optimistic "Born and Raised In Compton" offers a remedy to the hard life in the ghetto. Alex Henderson of Allmusic rated