Keel (bird anatomy) keel; and ratites (from "ratis", "raft" — referring to the flatness of the sternum), having a subtle keel structure or lacking one entirely. However, this classification has fallen into disuse as evolutionary studies have shown that many flightless birds have evolved from flighted birds. The current definition of Carinatae now includes all extant birds. 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
Center for Anatomy of the Charité Fick (1917–1952), Hermann Stieve (1946–1949), Friedrich Wilhelm Kopsch (1946–1949), Anton Johannes Waldeyer (1954–1966). Friedrich Schlemm (1795–1858) was full professor of anatomy in the University of Berlin since 1833. Center for Anatomy of the Charité The Center for Anatomy of the Charité is one of the centers of the Universitätsmedizin Berlin Charité in Berlin whose primary goals are anatomy teaching and research. It is part of Charité Center 2 for basic medicine and is composed of 3 institutes - Institute of Integrative Anatomy, Institute of Cell Biology and Neurobiology, Institute of Vegetative Anatomy. It has a long history. Past directors: Christian