Historically known as Vidar's muscle, it dilates the nostril and elevates the upper lip, enabling one to snarl. Snore is used because it is the labial elevator closest to the nose. The levator labii superioris alaeque nasi is sometimes referred to as the "angular head" of the levator labii superioris muscle. [3]

Sep 22, 2021 · Levator labii superioris alaeque nasalis (LLSAN) muscle is traditionally thought of as a muscle of the mouth, but is also a crucial muscle of the nose, a subset of the facial muscles 1. Interestingly, it has the longest name of any muscle in the human body.

Purpose: The aim of this study was to clarify the morphology and topography of the deep layer of levator labii superioris alaeque nasi muscle (LLSAN) and the transverse part of the nasalis. Anatomical variations in the topographic relationships were also described to understand the function of the LLSAN and the transverse part of the nasalis.

Nov 3, 2023 · Levator labii superioris is a short, paired triangular muscle of the face. It belongs to the buccolabial group of muscles of facial expression.

The aim of this study was to determine how the depressor supercilii (DS) connects to the levator labii superioris alaeque nasi (LLSAN) and inferior fibers of the orbicularis oculi (OOc INF) in the human midface.

May 30, 2010 · Photograph showing the deep layer of levator labii superioris alaeque nasi (LLSAN deep). The LLSAN deep originates from the superficial layer of LLSAN (LLSAN superf) and the maxilla, and inserts between the levator anguli …

Levator labii superioris (LLS)—This superficial muscle works in conjunction with the upper lip's other muscles to elevate and evert the upper lip. This muscle is an elevator muscle of the upper lip. The levator labii superior is much like the LLSAN modifies the nasolabial fold.

The levator labii superioris alaeque nasi (Latin: musculus levator labii superioris alaeque nasi) is a muscle of facial expression that widens the nostril and elevates the upper lip, thus enabling the facial expression of snarling.

In the present study, we aimed to determine the width of the LLSAN at the level of the nasal ala through cadaveric dissections and ultrasonography (US), to provide essential anatomical information for use during both invasive and noninvasive procedures in the nasal ala region.

In this online course, you will explore the LLSAN (levator labii superioris alaeque nasi) and LAO (levator anguli oris) muscles. Learn about their anatomic locations, features, and interactions with the overlying skin.