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Nasalis_muscle


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Nasalis muscle

Muscles of the head, face, and neck. (Nasalis labeled at center left.)
Latin musculus nasalis
Gray\'s subject #107 382
Origin: Maxilla
Insertion: Nasal bone
Artery:
Nerve: Buccal branch of the facial nerve
Action: Compresses bridge, depresses tip of nose, elevates corners of nostrils
Dorlands/Elsevier m_22/12549831

The nasalis (compressor naris) is a sphincter-like muscle of the nose whose function is to compress the nasal cartilage.

It consists of two parts, transverse and alar:

  • The transverse part arises from the maxilla, above and lateral to the incisive fossa; its fibers proceed upward and medially, expanding into a thin aponeurosis which is continuous on the bridge of the nose with that of the muscle of the opposite side, and with the aponeurosis of the Procerus.
  • The alar part is attached at one end to the greater alar cartilage, and at the other to the integument at the point of the nose.

Other sources divide it into "Compressor nasalis" and "Dilator nasalis".-1945763781 at GPnotebook

Additional images

Gray157.png

Left maxilla. Outer surface.

References

External links

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List of muscles of head and neck: the head
Extraocular (CN III, IV, VI)oblique (inferior, superior) - rectus (superior, inferior, medial, lateral) - levator palpebrae superioris (superior tarsal)
Mastication (CN V3)masseter - temporalis - pterygoid (lateral, medial)
Facial (CN VII)
Ear auriculares (anterior, superior, posterior) - temporoparietalis
Scalp/eyelid occipitofrontalis (occipitalis, frontalis) - orbicularis oculi (depressor supercilii) - corrugator supercilii
Nose procerus - nasalis (dilatator naris) - depressor septi nasi - levator labii superioris alaeque nasi
Mouth levator anguli oris - levator labii superioris - zygomaticus (major, minor)

orbicularis oris - risorius - buccinator

depressor anguli oris - depressor labii inferioris - mentalis
Mouth/throat (CN IX, X, XI)
(except TVP=V3)
Soft palate veli palatini (tensor, levator) - musculus uvulae - palatopharyngeus (to pharnyx) - palatoglossus (to tongue)
Pharynx pharyngeal constrictor (superior, middle, inferior) - longitudinal (stylopharyngeus, salpingopharyngeus)
Larynx cricothyroid - cricoarytenoid (posterior, lateral) - arytenoid (oblique arytenoid/aryepiglottic, transverse arytenoid) - thyroarytenoid (vocal)
Tongue (CN XII)extrinsic (genioglossus, hyoglossus/chondroglossus, styloglossus) - intrinsic (superior longitudinal, inferior longitudinal, transverse, vertical)

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