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the elevator muscle group that includes the procerus muscle and the levator labii superioris alaeque nasi muscle. the depressor muscle group which includes the alar nasalis muscle and the depressor septi nasi muscle. the compressor muscle group that includes the transverse nasalis muscle. the dilator muscle group which includes the dilator naris muscle that broadens the nostrils; it remains in two parts: (i) the dilator nasi anterior muscle, and (ii) the dilator nasi posterior muscle.
B. Visual appeal of the nose nasal subunits and nasal sections [edit] To plan, map, and carry out the surgical correction of a nasal defect or deformity, the structure of the external nose is divided into nine visual nasal subunits, and 6 aesthetic nasal sectors, which offer the plastic cosmetic surgeon with the steps for determining the size, extent, and topographic location of the nasal flaw or defect.
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the dorsal nasal section the lateral nasal-wall segments the hemi-lobule segment the soft-tissue triangle sections the alar segments the columellar section Rhinoplasty: The Common carotid artery. Utilizing Look At This Piece -ordinates of the subunits and sections to figure out the topographic area of the flaw on the nose, the cosmetic surgeon strategies, maps, and executes a nose surgery procedure.
For this reason, if more than half of a visual subunit is lost (harmed, faulty, destroyed) the cosmetic surgeon replaces the entire visual section, usually with a regional tissue graft, harvested from either the face or the head, or with a tissue graft collected from in other places on the patient's body. C. Nasal blood supply arteries and veins [modify] Like the face, the human nose is well vascularized with arteries and veins, and therefore supplied with abundant blood.
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The external nose is provided with blood by the facial artery, which ends up being the angular artery that courses over the superomedial aspect of the nose. The sellar region (sella turcica, "Turkish chair") and the dorsal area of the nose are provided with blood by branches of the internal maxillary artery (infraorbital artery) and the ophthalmic arteries that stem from the internal typical carotid artery system.