... Pneumatic bones Living birds have an extremely complex and sophisticated system of air sacs throughout their bodies . The bones are extremely light , with thin walls and a minimal series of splint - like buttresses bracing them inter ...

... bones thus modified are said to be pneumatic bones. Domestic fowl, in which flight is somewhat limited, have fewer pneumatic bones than species with good flight capabilities. Fractures of pneumatic bones can lead to air sac infection ...

... bones are pneumatic bones and are lined with air sac epithelium. Bones that are classified as pneumatic bones in avian species include the humerus, keel, and vertebra. Interosseous catheters for fluid administration should not be ...

... bones of the most active parts is called into use . Hence the pneumatic cells found in the wing of the owl , and ... pneumatic bone areas is directly proportional to the demands of respira- tion , and differs markedly in different ...

... bones, are hollow or contain many air cells—for example, the mastoid part of the temporal bone. Generally, pneumatic bones can also be cat- egorized as irregular bones because of their irregularity in shape. There is a difference ...

... bones of the owl and the femur of the ostrich enjoy superior pneumatic qualities . During tranquility , pulmonary aeration in owl and ostrich suffices ; when , however , ex- traordinary flight demands an increased amount of oxygenated ...

... bones . The carnivorous dinosaurs also show a tendency toward having air - filled ( pneumatic ) bones in the front part of the body . Air sacs from the nasal cavity extended laterally into a big pocket on each side of the face called ...