りゅうこつとっき
竜骨突起
1. keel (bird bone); carina
2. Keel (bird anatomy)A keel or carina 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.
Read “Keel (bird anatomy)” on English Wikipedia
Read “竜骨突起” on Japanese Wikipedia
Read “Keel (bird anatomy)” on DBpedia
Read “Keel (bird anatomy)” on English Wikipedia
Read “竜骨突起” on Japanese Wikipedia
Read “Keel (bird anatomy)” on DBpedia
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