Arched profile
Articulated suture - a seam on the head of a hornbill (Cyclorrhapha).
The arch is located at the front of the head and is formed from a transverse transverse seam. It has a horseshoe shape and runs above the antennae, separating the forehead, the opaque and the temples.
The construction of this seamless pattern is related to the way imagines come out of the beaver. This seam separates the front part of the head, connected to the rest by a stretched membrane. The hemorrhage pulses the hemolymph to the head, whereby the front of the pectoralis deflects and the parenchyma forms a bladder that balances the lid on the wall of the beanbag. The bladder is then inserted back into the head.
Many species of hawks are found between the articular seam and the antennae of the crescent-shaped plate.
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