Amazing anatomical features of bird endocrine glands Anatomical features of bird genital organs Anatomical features of bird urinary organs You may learn the anatomy of following organs from avian anatomy section – Identification from bird skeleton labeled anatomy Characteristics of pneumatic bones in birds You will learn the followings from avain osteology section – You may learn more about bird skeletal system from this blog. Please try to draw the skull bones of birds and identify them. Ventrally it is supported by the basioccipital bone. This supraoccipital bone forms the dorsal border of foramen magnum.įoramen magnum of bird is also bordered by paired exoccipital bone laterally. ![]() A single median supraoccipital bone will find at the caudal part of parietal bone in bird. You will find parietal bone at caudal part of bird skull. The caudal part of skull bone of bird formed by numbers of fused bone. It gives the thin road like jugul bone that helps to form rostal part of zygomatic arch. The lateral rami of nasal bones meet with the maxillae bone ventrally in bird. This structure never extends caudal to nasal frontal hinge. The external nares of duck, geese and chicken are known as holorhinal. But the lacrimal bones are well developed in anatids birds. In most anatids birds the ectethmoid bone are absent. But ectethmoid bone is so small and fragile in chicken. In chicken both bones lacrimal and ectethmoid are present. One or both bone may fused with other elements Separate lacrimal and ectethmoid bones or In lacrimal and ectethmoid bones from bird, you may find the followings conditions – This lacrimal bone is also articulates to the lesser degree with frontals bone. It articulates primarily with the lateral rami of nasal bone. The lacrimal bone located at the rostal margin of orbit. These sphenoid elements are fused and inseparable in adult bird. The caudal wall of orbit is derived from the several sphenoid elements. You will find a larger optic foramen at the caudal border of inter orbital septum of bird bone. You know there is a larger orbit in the bird skull bones. ![]() I will add some other anatomical feature of real bird skull in future. Bird skull identificationĭo you want to perform bird skull identification? You should identify the following structures from real bird skull – These boney plates help to form a ring in the sclera of bird eye. This is actually a series of overlapping boney plates. This is actually known as the sclerotic ring in eye. You will find a boney skeleton in eyeball of bird. The orbit is separated by interorbital septum. There is a larger orbital cavity in the skull of birds. This moveable joint is termed as nasal frontal hinge Upper jaw is articulates with brain cage with a moveable joint. Skull is kinetic where the upper jaw is movable. These pneumatizations help to produce a great lightened structure of head bones. This is occurred by the epithelial extensions of air sac into many areas in real bird skull bones. The pneumatization of skull bones may occur. But in embryo you may find some real sutures in the skull bones. There is little number of original sutures in the skull bones. I would like to provide the 5+ best amazing information about the bird skull anatomy – You will find highly specialized characteristics in real bird skull bones. And these occurred due to the fusion of cranium and pelvic bones in bird. You know avian skeletons shows lightness and straight. You may read this article to learn bird skeletal system. ![]() I have discussed on the amazing information of bird bones at avian osteologyarticle. Bird has one of the most highly specialized skulls among the living vertebrate.
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