the elevator muscle group which includes the procerus muscle and the levator labii superioris alaeque nasi muscle. the depressor muscle group that includes the alar nasalis muscle and the depressor septi nasi muscle. the compressor muscle group which consists of the transverse nasalis muscle. the dilator muscle group that includes the dilator naris muscle that expands the nostrils; it is in two parts: (i) the dilator nasi anterior muscle, and (ii) the dilator nasi posterior muscle.
B. Aesthetics of the nose nasal subunits and nasal segments [modify] To prepare, map, and perform the surgical correction of a nasal defect or defect, the structure of the external nose is divided into nine aesthetic nasal subunits, and six visual nasal sectors, which offer the cosmetic surgeon with the procedures for figuring out the size, extent, and topographic area of the nasal problem or deformity.
the dorsal nasal segment the lateral nasal-wall sections the hemi-lobule section the soft-tissue triangle sectors the alar sectors the columellar sector Nose job: The Common carotid artery. Utilizing Answers Shown Here -ordinates of the subunits and sections to identify the topographic location of the flaw on the nose, the cosmetic surgeon plans, maps, and performs a nose surgery procedure.
Thus, if more than 50 percent of a visual subunit is lost (harmed, faulty, damaged) the surgeon replaces the entire aesthetic sector, usually with a regional tissue graft, gathered from either the face or the head, or with a tissue graft gathered from elsewhere 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 hence provided with plentiful blood.
The external nose is supplied with blood by the facial artery, which ends up being the angular artery that courses over the superomedial element of the nose. The sellar area (sella turcica, "Turkish chair") and the dorsal region of the nose are provided with blood by branches of the internal maxillary artery (infraorbital artery) and the ophthalmic arteries that obtain from the internal common carotid artery system.