lacrimal bone

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Related to lacrimal bone: Vomer bone

lac′rimal bone`

a skull bone extending from each orbit to the nasal region, greatly reduced in mammals.

[1850–55]

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Noun

lacrimal bone - small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts

bone, os - rigid connective tissue that makes up the skeleton of vertebrates

cranial orbit, eye socket, orbital cavity, orbit - the bony cavity in the skull containing the eyeball

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References in periodicals archive ?

Anterior ethmoid cells pneumatize the lacrimal bone & the frontonasal process of the maxilla.

SINONASAL ANATOMICAL VARIATIONS IN PATIENTS WITH CHRONIC RHINOSINUSITIS

ciconia; in its fades nasalis, it fuses rostro-laterally with the lateral-caudal facet of the frontal and lacrimal bone region.

Phylogeny of the species of Ciconia (Aves, Ciconiidae) based on cranial osteological characteristics

A Freer elevator was used to raise up the nasal mucosa to expose the axillary ridge (part of the frontal process of the maxillary bone) anterior to the lacrimal bone, and the tissue was resected using cutting forceps.

Results of Endoscopic Dacryocystorhinostomy under Local Anesthesia with Minimal Sedation

A deep fossa for the lacrimal sac was located on the orbital surface of lacrimal bone. The oval foramen was positioned in the caudal part of the pterygoid bone.

Morphologic and osteometric analysis of the skull of Markhoz goat (Iranian Angora)

Though several intra-nasal pleomorphic adenomas have been described, to our knowledge this is the first reported case of a pleomorphic adenoma arising from the mucosa of lateral nasal wall over the lacrimal bone without invading the lacrimal sac.

Pleomorphic adenoma of lateral nasal wall presenting with epiphora

They are extramural cells (not confined within the ethmoid bone) and extend anteriorly into the lacrimal bone. They are anterior to the anterior attachment of the middle turbinate to the skull base.

Paranasal sinus variants

The ectethmoid bone (Ec, Figure 5) is slender and its dorsal portion (facies nasalis) (Pj1, Figures 5-9) is short laterally and there is no contact with the lacrimal bone. The ventral portion (facies orbitalis) (Pj2, Figures 5-14) has a ventral extremity that is rounded and broad and a lateral extremity that is concave because the ectethmoid is narrower between its projections.

When decisions on homologous structures cause ambiguous taxa relationships: the Neomorphinae (Aves, Cuculidae) example/ Interpretacoes de homologias primarias e ambiguidade nas posicoes filogeneticas dos taxons: o exemplo nos Neomorphinae (Aves, Cuculidae)

Posteriorly, this process articulates with the lacrimal bone to form the anterior portion of the medial orbital wall.

Medical imaging of facial and mandibular fractures

The maximum contribution in the formation of the orbit was from frontal bone followed by the zygomatic and lacrimal bone. The interorbital distance in the present study was 7.81[+ or -]0.07 cm.

Morphological and Applied Anatomical Studies on the Head Region of Local Mizo Pig (Zovawk) of Mizoram/ Estudios Morfologicos y Anatomicos Aplicados en la Cabeza de Cerdo Local Mizo (Zovawk) de Mizoram

Chips of lacrimal bone is removed using side knife, then frontal process of maxilla is punched out using Kerrison's bone punch, lacrimal sac is fully exposed, for the exposure of upper of sac is sometimes drilling is required.