![]() ![]() Supra-orbital process of frontal bone forms a part of the posterior rim of the orbit. The medial surface meets the sphenoid and ethmoid. It presents the orbital opening of the supra-orbital canal.Ĭlose to the posterior edge is the ethmoidal foramen. Orbital plate of frontal bone forms the medical wall of the orbit. The anterior end with its fellow form notch to receive the two nasal bones. In the above figure of horn, you can easily see how frontal bone form the cornual process or horn core for the horn in animals. The horn core varies greatly in size, length curvature in different animals and different breeds. The horn core (flint or cornual process) is excavated to form part of the frontal sinus. It meets the parietal and at the junction, forms a central prominence-the frontal eminence (torus frontalis).Īt its postero-lateral angle is a large conical process. The internal surface forms part of the cranial and nasal cavities. The bone consists of two tables between which is large frontal sinus. The supra orbital groove marks the course of frontal vein. ![]() The external surface of the body presents the supra-orbital groove about the middle of which is foramen-the upper opening of the supra orbital canal. Each has a body or frontal part, an orbital plate and supra orbital processes. The characteristic appearance of the skull is largely due to the shape and size of the frontal bones. The frontal bones are situated on the dorsal aspect of the skull and form the entire roof of the cranium. Frontal bone of animals is a unpaired bone of skull, which located on the dorsal aspect of the skull and form the entire roof of the cranium. ![]()
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