Nov 3, 2023 · Nasalis is a paired facial muscle that covers the dorsum of the nose. Learn everything about the anatomy and functions of this muscle at Kenhub!

The nasalis muscle is a sphincter -like muscle of the nose. It has a transverse part and an alar part. It compresses the nasal cartilages, and can "flare" the nostrils. It can be used to test the facial nerve (VII), which supplies it.

Jun 26, 2023 · The nasalis is a sphincter-like muscle of the nose whose function is to compress the nasal cartilages. It is the muscle responsible for “flaring” of the nostrils.

Oct 8, 2024 · The nasalis is a nasal muscle of facial expression. It is the largest of the nasal muscles and is comprised of two parts: transverse and alar. Attachments: Transverse part – originates from the maxilla, immediately lateral to the nose. It attaches onto an aponeurosis across the dorsum of the nose.

Learn about the nasalis muscle's origin, action, insertion, innervation and arterial supply. Understand its clinical correlates.

Apr 19, 2025 · The meaning of NASALIS is a small muscle on each side of the nose that constricts the nasal aperture by the action of a triangular transverse portion which draws the lateral part of the aperture upward and a quadrangular alar portion which draws it downward.

The nasalis (Latin: musculus nasalis) is a paired facial muscle located in the area of the nose. It is classified as the nasal facial muscle. The nasalis is responsible for narrowing and widening the …

Jul 27, 2020 · Like all other facial muscles, nasalis originates from the second pharyngeal arch and therefore is innervated by the facial nerve (CN VII). This muscle’s actions of dilating the nostrils and depressing the ala nasi allow nostril flaring, which happens when breathing.

Jan 1, 2018 · The nasalis muscle, also termed the naris muscle, is divided into two parts: compressor nasalis and dilator nasalis. Both are innervated by the buccal branch of the facial nerve. Compressor nasalis arises from the frontal part of the maxilla just superior to the upper incisors on each side.

Jan 16, 2025 · The nasalis muscle is a facial muscle that is responsible for the movement of the nostrils. It is a narrow, elongated muscle that is located in the nasal region of the face.