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
Anatomy for Beginners by medical students in some countries as part of their medical training. Formal dissection are performed slowly and take dozens of hours of dissection. "Anatomy for Beginners" performs quicker autopsy and also combines with demonstration of plastinated body parts and specimens to gives just a glimpse of the human anatomy. The individuals on whom the demonstration was performed had, before their death, enrolled on von Hagens’ body donor programme and consented to the use of their bodies for public education in anatomy, including public demonstration. Anatomy for Beginners Anatomy for Beginners is a television show created by Gunther von Hagens.