- Frontal process of maxilla
Infobox Bone
Name = Frontal process of maxilla
Latin = processus frontalis maxillae
GraySubject = 38
GrayPage = 161
Caption = Cartilages of the nose. Side view. (Frontal process of maxilla visible at center.)
Caption2 = Articulation of nasal and lacrimal bones with maxilla. (Frontal process visible at top center.)
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The frontal process of themaxilla (nasal process) is a strongplate , which projects upward, medialward, and backward, by the side of thenose , forming part of its lateral boundary.Its "lateral surface" is smooth, continuous with the anterior surface of the body, and gives attachment to the
Quadratus labii superioris , theOrbicularis oculi , and themedial palpebral ligament .Its "medial surface" forms part of the lateral wall of the
nasal cavity ; at its upper part is a rough, uneven area, which articulates with the ethmoid, closing in theanterior ethmoidal cells ; below this is an oblique ridge, theethmoidal crest , the posterior end of which articulates with themiddle nasal concha , while the anterior part is termed theagger nasi ; the crest forms the upper limit of the atrium of themiddle meatus .The "upper border" articulates with the frontal bone and the "anterior" with the nasal; the "posterior border" is thick, and hollowed into a groove, which is continuous below with the lacrimal groove on the nasal surface of the body: by the articulation of the medial margin of the groove with the anterior border of the lacrimal a corresponding groove on the lacrimal is brought into continuity, and together they form the
lacrimal fossa for the lodgement of thelacrimal sac .The lateral margin of the groove is named the
anterior lacrimal crest , and is continuous below with the orbital margin; at its junction with the orbital surface is a small tubercle, thelacrimal tubercle , which serves as a guide to the position of thelacrimal sac .
=AdditionalExternal links
* - "Osteology of the Skull: The Maxilla"
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