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Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight.Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly.
The synsacrum is a skeletal structure of birds and other dinosaurs, in which the sacrum is extended by incorporation of additional fused or partially fused caudal or lumbar vertebrae. This structure can only be seen in birds. Some posterior thoracic vertebrae, the lumbar, sacral and a few anterior caudal vertebrae are fused to form a complex ...
The furcula (Latin for "little fork"; pl.: furculae) [a] or wishbone is a forked bone found in most birds and some species of non-avian dinosaurs, and is formed by the fusion of the two clavicles. [1] In birds, its primary function is in the strengthening of the thoracic skeleton to withstand the rigors of flight.
Diagram of bird wing, labeled with the Coracoid, Furcula, Scapula, Keel of Sternum, Humerus, Radius, Ulna, Metacarpals, Supracoracoideus muscle, and Pectoralis muscle ...
The bones of three fingers are preserved in the bird wing. The question of which fingers they are has been discussed for about 150 years, and an extensive literature is devoted to it. [ 2 ] [ 3 ] The anatomical, paleontological, and molecular data suggests that these are fingers 1–3, but embryological data suggests that these are actually ...
For example, in the long-tailed duck, the leg and wing bones are not pneumatic, in contrast with some of the other bones, while loons and puffins have even more massive skeletons with no aired bones. [ 15 ] [ 16 ] The flightless ostrich and emu have pneumatic femurs , and so far this is the only known pneumatic bone in these birds [ 17 ] except ...
The remains were found in a remote area of the Bear River Migratory Bird Refuge near Willard Bay at 10:45 a.m. Saturday, March 30, the Box Elder County Sheriff’s Office said in a news release.
The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. [77] The skull bones in adults are fused and do not show cranial sutures. [78] The orbital cavities that house the eyeballs are large and separated from each other by a bony septum (partition).
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