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Topic: Lacrimal bone

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Palatine bone

Ethmoid bone

Sphenoid bone

Nasal bone

Inferior nasal conchae

Temporal bone

Vomer bone

Frontal bone

Occipital bone

Parietal bone

Malleus

Skull

Incus

Stapes

Human skeleton

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	Diameter of the Bony Lacrimal Canal: Normal Values and Values Related to Nasolacrimal Duct Obstruction: Assessment ...
		the lacrimal sac and the nose proximal to the obstruction of
		debris and mucus in the lacrimal sac and the nasolacrimal duct
		the bony canal and lacrimal obstruction (1, 4).
	www.ajnr.org /cgi/content/full/22/5/845 (3209 words)

	Maxilla - Wikipedia, the free encyclopedia
		The maxillae are the largest bones of the face, except for the mandible, and form, by their union, the whole of the upper jaw.
		In front of the opening of the sinus is a deep groove, the lacrimal groove, which is converted into the nasolacrimal canal, by the lacrimal bone and inferior nasal concha; this canal opens into the inferior meatus of the nose and transmits the nasolacrimal duct.
		In old age the bone reverts in some measure to the infantile condition; its height is diminished, and after the loss of the teeth the alveolar process is absorbed, and the lower part of the bone contracted and reduced in thickness.
	en.wikipedia.org /wiki/Maxillary (2426 words)

	The axial skeleton Chapter 7
		Regions/Landmarks: The squamous portion, or squama, of the temporal bone is the convex, irregular surface that borders the squamous suture.
		Articulations: The sphenoid bone articulates with the frontal, occipital, parietal, ethmoid, and temporal bones of the cranium and the palatine bones, zygomatic bones, maxillary bones, and vomer of the face (Figures 7-3c,d,e, 7-4a, and b).
		Articulations: The ethmoid bone articulates with the frontal and sphenoid bones of the cranium and with the nasal, lacrimal, palatine, and maxillary bones and the inferior nasal conchae and vomer of the face (Figures 7-3c,d, 7-4a, and b).
	www.udayton.edu /~brahler/courses/HSS305/axial_notes.htm (8647 words)

	[No title] (Site not responding. Last check: 2007-10-23)
		Describe the bones of the orbit Definition: The bony orbit is the bony cavity in the skull that surrounds the eye.
		The lateral side is composed largely of the zygomatic bone at the margin and of the greater wing of the sphenoid as it extends inward.
		Anterior to this is the small lacrimal bone in which is a small concavity, the fossa for the lacrimal sac.
	students.washington.edu /marafie/HeadNeckViva/H3B.doc (650 words)

	eMedicine - Nasolacrimal System Anatomy : Article by Bobbie Parwar, MD
		Rapid growth of the maxillary bone in relation to the frontal bone results in greater lateral stretching of the inferior canaliculus with a subsequent lateral position of the inferior punctum with respect to the superior punctum.
		The lacrimal sac sits within the lacrimal fossa, which is bound anteriorly by the frontal process of the maxillary bone (anterior lacrimal crest) and posteriorly by the lacrimal bone (posterior lacrimal crest).
		The lacrimal fascia is surrounded by fibers of the orbicularis oculi muscle; the superficial head of the muscle travels around the front of the sac to attach to the anterior lacrimal crest, and the deep head of the muscle travels behind the sac to attach to the posterior lacrimal crest.
	www.emedicine.com /ent/topic5.htm (1528 words)

	Lacrimal bone (Site not responding. Last check: 2007-10-23)
		Infront of this crest is a longitudinal groove, the lacrimal sulcus (sulcus lacrimalis), the inner margin of which unites with the frontalprocess of the maxilla, and the lacrimal fossa is thus completed.
		Theinferior is divided by the lower edge of the posterior lacrimal crest into two parts: the posterior part articulates with theorbital plate of the maxilla; the anterior is prolonged downward as the descending process, which articulates with the lacrimalprocess of the inferior nasal concha, and assists in forming the canal for the nasolacrimal duct.
		The lacrimal articulates with four bones: two of the cranium, the frontal and ethmoid, and two of the face, themaxilla and the inferior nasal concha.
	www.therfcc.org /lacrimal-bone-83332.html (297 words)

	Lacrimal Bone
		The lacrimal bone (Os Lacrimale), the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit.
		The lacrimal is ossified from a single center, which appears about the twelfth week in the membrane covering the cartilaginous nasal capsule.
		The lacrimal articulates with four bones: two of the cranium, the frontal and ethmoid, and two of the face, the maxilla and the inferior nasal concha.
	www.websters-online-dictionary.org /definition/english/la/lacrimal+bone.html (484 words)

	Endoscopic Dacryocystorhinostomy
		The lacrimal fossa is bounded by the anterior lacrimal crest, which consists of the frontal process of the maxillary bone.
		A mucosal flap is elevated, exposing the lacrimal fossa.
		The anatomy of the lacrimal bone at the lateral wall of the nose: its significance to the lacrimal surgeon.
	www.bcm.edu /oto/grand/06012000.html (2954 words)

	Glossary of Skeletal Anatomy (Site not responding. Last check: 2007-10-23)
		The inferior nasal conchae articulate with the ethmoid, maxilla, lacrimal and paltine bones and form the lower part of the lateral wall of the nasal cavity.
		a thin scalelike bone, roughly resembling a fingernail in size and shape, at the anterior part of the medial wall of the orbit, articulating with the frontal and ethmoidal bones and the maxilla and inferior nasal concha.
		the bone forming the lower jaw; the largest and strongest bone of the face, presenting a body and a pair of rami, which articulate with the skull at the tempromandibular joints.
	www.bioanth.org /biomed/anatomy.htm (704 words)

	The Lacrimal Bone - Wikimd (Site not responding. Last check: 2007-10-23)
		Borders—Of the four borders the anterior articulates with the frontal process of the maxilla; the posterior with the lamina papyracea of the ethmoid; the superior with the frontal bone.
		Ossification—The lacrimal is ossified from a single center, which appears about the twelfth week in the membrane covering the cartilaginous nasal capsule.
		Articulations—The lacrimal articulates with four bones: two of the cranium, the frontal and ethmoid, and two of the face, the maxilla and the inferior nasal concha.
	www.wikimd.org /index.php?title=The_Lacrimal_Bone (243 words)

	OSL: Lacrimal Bone Thickness at the Lacrimal Sac Fossa (Site not responding. Last check: 2007-10-23)
		The thickness of 69 lacrimal bones at the lacrimal sac fossa from 48 patients was measured.
		The thinnest measured cross section of the lacrimal bone sample was 11 µm and the thickest was 722 µm.
		The lacrimal bone was composed of a thin plate of lamellar bone.
	www.slackinc.com /eye/os/stor0896/hart.htm (221 words)

	[No title]
		Medial--formed by the maxillary bone, the lacrimal bone and the ethmoid bone Lateral--formed by the zygomatic bone and the greater wing of sphenoid Superior--formed by the frontal bone Inferior--Formed by the maxillary bone Posterior--Formed by the greater wing of the sphenoid bone 2.
		The Infratrochlear nerve innervates the lacrimal sac and medial and inferior eyeball.
		The lacus lacrimalis (lacrimal lake) is the area of the conjunctive between the medial margins of the eyelids at the inner angle.
	www.med.unc.edu /~kimplera/classes/anatomy/hn9.doc (2151 words)

	+This Site Suuucks! Thank God! ++Agora é k são elas...
		Each assists in forming the boundaries of three cavities, viz., the roof of the mouth, the floor and lateral wall of the nose and the floor of the orbit; it also enters into the formation of two fossæ, the infratemporal and pterygopalatine, and two fissures, the inferior orbital and pterygomaxillary.
		The nasal bones are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face, and form, by their junction, “the bridge” of the nose (Fig.
		Articulation of nasal and lacrimal bones with maxilla.
	www.freewebs.com /you_suuuck/fmdulstuff.htm (3702 words)

	Eye - Dissector Answers
		Orbital septum: (the superior palpebral fascia in the upper lid and the inferior palpebral fascia in the lower lid), continuous with the periosteum of the bones of the sup and inf margins of the orbit and ends in the anterior surfaces of the tarsal plates
		The lacrimal part of orbicularis oculi arises from the lateral wall of the lacrimal sac and the bone posterior to it.
		The orbital part of lacrimal gland lies in the lacrimal fossa of the orbital plate of the frontal bone.
	anatomy.med.umich.edu /head/eye_ans.html (2795 words)

	Lacrimal bone -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-23)
		The lacrimal bone (Os Lacrimale), the smallest and most fragile (Rigid connective tissue that makes up the skeleton of vertebrates) bone of the (The front of the human head from the forehead to the chin and ear to ear) face, is situated at the front part of the medial wall of the orbit.
		The upper part of this (Monotypic genus of Madagascar civets closely related to palm civets) fossa lodges the lacrimal sac, the lower part, the naso-lacrimal duct.
		Of the four borders the anterior articulates with the frontal process of the maxilla; the posterior with the lamina papyracea of the (One of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity) ethmoid; the superior with the frontal bone.
	www.absoluteastronomy.com /encyclopedia/l/la/lacrimal_bone.htm (319 words)

	Anatomical Dictionary
		bone formed by the fusion of the of the anklebones astragalus (a) and calcaneum (c).
		Osteoderms include the scutes of crocodiles, the keeled scutes, spines, and tail-club bones of ankylosaurs, and the plates, spines, and gular ossicles of stegosaurs.
		in birds and some dinosaurs, the hind limb bone formed by the fusion of the bottom of the tibia, or calf bone, with the astragalus, the largest ankle bone of dinosaurs and birds.
	www.dinosauria.com /dml/anatomy.htm (1792 words)

	Bones and Joints of the Head and Neck - Self-study
		it articulates with the mandibular fossa of the temporal bone
		it articulates with the parietal bone and the greater wing of the sphenoid bone at the squamous suture
		the zygomatic bone is frequently fractured in blows to the side of the orbit; the temporal fascia attaches to the zygomatic arch
	anatomy.uams.edu /AnatomyHTML/bonesheadneckss.html (4343 words)

	Tearing and Runny Eyes (Site not responding. Last check: 2007-10-23)
		There are two locations where the duct narrows or flattens: at the maxilla bone the diameter narrows, and as it passes over the roots of the upper incisor teeth the duct is significantly flattened.
		Other causes may include trauma to the lacrimal or maxillary bones of the face and impaction or abscesses of the upper incisor teeth which further constricts the lacrimal duct.
		Diagnosis of dacryocystitis is based on clinical signs, cultures of the lacrimal duct and on cultures and cytology (microscopic examination) of material flushed from the duct.
	www.rabbit.org /chapters/san-diego/health/vet-talk/eyes.html (681 words)

	Dissector Answers - Eye
		Lacrimal - very small bone; gives a crest: posterior lacrimal crest; between the post and ant crests is the lacrimal fossa for the lacrimal sac to sit in
		The lacrimal portion of the orbicularis oculi muscle pulls backward and holds the eyelids close against the eyeball.
		The orbital part of the lacrimal gland lies superior to the aponeurosis, while the palpebral part passes lateral to it to extend into the eyelid.
	anatomy.med.umich.edu /nervous_system/eye_ans.html (2775 words)

	II. Osteology. 5b. 3. The Lacrimal Bone. Gray, Henry. 1918. Anatomy of the Human Body.
		The lacrimal bone, the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit (Fig.
		In front of this crest is a longitudinal groove, the lacrimal sulcus (sulcus lacrimalis), the inner margin of which unites with the frontal process of the maxilla, and the lacrimal fossa is thus completed.
		The upper part of this fossa lodges the lacrimal sac, the lower part, the naso-lacrimal duct.
	www.bartleby.com /107/39.html (293 words)

	Human Skull
		The fossa of lacrimal sac is the vacant region between the frontal process of the maxilla and the lacrimal bone.
		The "frontal bone" forms the front portion of the skull above the eyes and includes the forehead, the roof of the nasal cavity, and the roofs of the orbits (bony sockets) of the eyes.
		It is the flattened portion of the frontal bone.
	www.innerbody.com /image/skel01.html (1916 words)

	Orbital Tumors
		The orbit is a pyramidal or cone-shaped space comprised of seven bones (frontal, greater and lesser wings of the sphenoid, zygoma, maxilla, lacrimal, palatine, and ethmoid).
		The inferior wall, or orbital floor is composed mainly of the orbital plate of the maxilla, the zygomatic bone anterolaterally, and the orbital plate of the palatine bone posteriorly.
		The medial wall is composed of the frontal process of the maxilla, the lacrimal bone, the lamina papyracea of the ethmoid, and a portion of the lesser wing of the sphenoid.
	www.utmb.edu /otoref/Grnds/Orbital-Tumors-2001-10/Orbital-Tumors-2001-10.htm (6185 words)

	Orbital Trauma (June 1998)
		The lacrimal portion extends from the punctum to the medial canthal angle.
		The roof is composed of the orbital plate of the frontal bone and posteriorly the lesser wing of the sphenoid.
		The triangular orbital floor is formed by the zygomatic bone, the orbital process of the palatine bones, and for the most part, the orbital plate of the maxilla which is anterior to the infraorbital fissure.
	www.utmb.edu /otoref/Grnds/orbital-trauma.html (4758 words)

	Ocular Pathology Study Guide: Lacrimal Excretory System- Human
		Tears are produced in the lacrimal gland (#1 in diagram to the left)exit the ocular surface via the puncta at the medial portion of the eyelids (#2 Diagram left).
		The lacrimal sac is placed in the lacrimal fossa (formed by the lacrimal bone and the frontal process of the maxilla) which lies in the anterior part of the medial wall of the orbit.
		The lacrimal sac and duct are both lined by two layers of epithelium, the superficial of which is columnar, the deeper flattened.
	www.medrounds.org /ocular-pathology-study-guide/2006/02/lacrimal-excretory-system-human.html (259 words)

	Carnegie's Dinosaurs: T. rex Web Log (Site not responding. Last check: 2007-10-23)
		The dentary is the tooth bearing bone whereas the surangular extends along the outer surface of the jaw from the dentary to the articular bone, which articulates with the skull.
		Fortunately the vibrations from using the hammer and chisel caused the lacrimal bone to separate cleanly from the surrounding plaster.
		The other arm of the L is directed toward the front of the skull. I am using a hammer and chisel to chip the plaster away from the right outermost of four iron rods that extend the length of the top part of the skull.
	www.carnegiemuseums.org /cmnh/ditw/paleolab/rex.htm (2879 words)

	Skull, Scalp and Superficial Face
		Several of the bones of the skull have developed air spaces that are lined with mucous membrane.
		Since these sinuses are embedded in bone, they cannot be seen easily on regular skull preparations and usually require sawing into the bone to see them.
		Under the lacrimal caruncle (4) is located the medial palpebral ligament to which the orbicularis oculi muscle attaches and beneath which is the lacrimal sac (7) which empties into the lacrimal duct (8) that enters the nose.
	mywebpages.comcast.net /wnor/lesson1.htm (1057 words)

	IngentaConnect The anatomy of the lacrimal bone at the lateral wall of the nose:... (Site not responding. Last check: 2007-10-23)
		The position, dimension and thickness of the exposed lacrimal bone at the lateral nasal wall in 10 cadaveric half-heads were examined.
		In all cases, the lacrimal bone at the lateral nasal wall was found to be just anterior to the mid-third of the uncinate process.
		In all the cases, the position of the lacrimal passage covered by the lacrimal bone corresponded to the postero-medial aspect of the upper lacrimal duct and the lower lacrimal sac.
	api.ingentaconnect.com /content/bsc/cotol/1999/00000024/00000004/art00235 (244 words)

	THE FUNCTION AND EVOLUTION OF THE SUPRAORBITAL PROCESS IN DUCKS
		Lacrimal bone and adjacent structures in a male King Eider, Somateria s pectabilis.
		THE anterior margin of the orbit in ducks is formed by the lacrimal bone, which articulates with the anterolateral margin of the frontal bone and the posterodorsal corner of the maxillary process of the nasal bone.
		In many ducks the postero- dorsal corner of the lacrimal is marked by a small tubercle, which serves as the site of attachment of the anterior end of the orbital membrane, a sheet of connective tissue that covers and protects the dorsal aspect of the eyeball.
	elibrary.unm.edu /sora/Auk/v087n03/p0568-p0572.html (2372 words)

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