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In most mammals, the philtrum is a narrow groove that may carry dissolved odorants from the rhinarium or nose pad to the vomeronasal organ via ducts inside the mouth. [4] For humans and most primates, the philtrum survives only as a vestigial medial depression between the nose and upper lip. [5]
It follows a similar course along the edge of the upper lip, lying between the mucous membrane and the orbicularis oris, and anastomoses with the artery of the opposite side. It supplies the upper lip, and gives off in its course two or three vessels which ascend to the nose; a septal branch ramifies on the nasal septum as far as the point of ...
The levator labii superioris alaeque nasi muscle (occasionally shortened alaeque nasi muscle) is, translated from Latin, the "lifter of both the upper lip and of the wing of the nose". The muscle is attached to the upper frontal process of the maxilla and inserts into the skin of the lateral part of the nostril and upper lip. [1]
Its fibers converge, to be inserted into the muscular substance of the upper lip between the angular head and the levator anguli oris. The lateral fibers, forming the zygomatic head (also known as the zygomaticus minor muscle [ 3 ] ) arise from the malar surface of the zygomatic bone immediately behind the zygomaticomaxillary suture and pass ...
The infraorbital nerve provides sensory innervation to the skin of the lower eyelid, [2] the side of the nose, [2] the moveable part of nasal septum, [citation needed] the anterior cheek, [citation needed] and part of the upper lip. [2] It does not provide motor supply to any muscles. [citation needed]
Elevates upper lip Levator labii superioris alaeque nasi muscle: Snarl Levator anguli oris: Soft smile Nasalis: Flare nostrils Orbicularis oris muscle: Purse Lips Depressor septi nasi: Depresses nasal septum Procerus: Moves skin of forehead
A 'stiff upper lip' could trigger inflammation. For premium support please call: 800-290-4726 more ways to reach us
In embryology, the nasal placode (or olfactory placode [1]) gives rise to the olfactory epithelium of the nose. Two nasal placodes arise as thickened ectoderm from the frontonasal process. They give rise to the nose, the philtrum of the upper lip, and the primary palate.