Facial anatomy lips

The upper lip covers the anterior surface of the body of the maxilla. The centripetal growth of these prominences results in fusion by the thirteenth week of gestation. The various branches of the trigeminal nerve, or cranial nerve V, provide sensory innervation to the lips. The muscles of facial expression are all specialized members of the panniculus carnosus , which attach to the dermis and so wrinkle, or dimple the overlying skin. This link puts you in the Master Muscle List by Region, where you should select "head and neck". The lips are also required for whistling and the playing of wind instruments. The skin of the lip, with three to five cellular layers, is very thin compared to typical face skin, which has up to 16 layers.
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Lips are controlled by their own muscles, which are considered part of the muscles of facial expression. Hard palate Soft palate Palatine raphe Incisive papilla. The tip of the root is known as the apex. The surface is convex faciolingually. The facial groove runs from the central pit onto the facial surface.
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Right maxillary lateral incisor. Fox Chapel Publishing; 1st edition July 1, Language: It runs parallel to the distolingual groove. Contrary to the effects of testosterone on a man's facial structure, the effects of a woman's oestrogen levels serve to maintain a relatively "childlike" and youthful facial structure during puberty and during final maturation. In the following pages each tooth of the permanent dentition is described, except for the third molars, which are not reproduced in artificial teeth.
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Presentations of actinic cheilitis include asymptomatic, pain, swelling, erythema or patchy white areas, or scaly crusting of the vermilion. Repair of full-thickness lip defects should occur in four layers submucosa, orbicularis oris, vermilion border, cutaneous lip , utilizing small-caliber or sutures. Author Information Authors Meghan A. Bipedicled axial cross-lip flap for correction of major vermilion deficiency after cleft lip repair. An important goal of lip reconstruction is to maintain the competence of the oral seal to allow for mastication and phonation. Additionally, patients should avoid using straws for 7 days postoperatively to reduce perioral muscle motion that may disrupt the healing process.
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