Anatomy and Histology of the Lacrimal Fluid Drainage System
Five human specimens of the lacrimal canaliculus and sac were examined by light and scanning electron microsopy. The superior and inferior lacrimal canaliculi are lined with stratified squamous epithelium that is nonkeratinized and non-mucin-producing. The common canaliculus is also lined with strat...
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| Veröffentlicht in: | Okajimas Folia Anatomica Japonica 2000/12/20, Vol.77(5), pp.155-160 |
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| container_title | Okajimas Folia Anatomica Japonica |
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| creator | KOMINAMI, Rieko YASUTAKA, Satoru TANIGUCHI, Yutaka SHINOHARA, Harumichi |
| description | Five human specimens of the lacrimal canaliculus and sac were examined by light and scanning electron microsopy. The superior and inferior lacrimal canaliculi are lined with stratified squamous epithelium that is nonkeratinized and non-mucin-producing. The common canaliculus is also lined with stratified squamous epithelium, but its lumen is much narrower than the lumen of the superior and inferior canaliculi. The common canaliculus opens into an ample space called the vestibule, where the epithelium changes to high pseudostratified columnar and then low pseudostratified columnar. The vestibule continues to the infundibulum of the lacrimal sac. The infundibulum is formed by several epithelial folds that radiate from the vestibular opening to the lacrimal sac. The vestibule and infundibulum are consistent transitional structures from the common canaliculus to the lacrimal sac. The connective tissue of the lamina propria from the common canaliculus to the lacrimal sac has two histological characteristics: numerous free cell aggregates (= lymphoid structure) and numerous venules and capillaries (= cavernous structure). |
| doi_str_mv | 10.2535/ofaj1936.77.5_155 |
| format | Article |
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The superior and inferior lacrimal canaliculi are lined with stratified squamous epithelium that is nonkeratinized and non-mucin-producing. The common canaliculus is also lined with stratified squamous epithelium, but its lumen is much narrower than the lumen of the superior and inferior canaliculi. The common canaliculus opens into an ample space called the vestibule, where the epithelium changes to high pseudostratified columnar and then low pseudostratified columnar. The vestibule continues to the infundibulum of the lacrimal sac. The infundibulum is formed by several epithelial folds that radiate from the vestibular opening to the lacrimal sac. The vestibule and infundibulum are consistent transitional structures from the common canaliculus to the lacrimal sac. The connective tissue of the lamina propria from the common canaliculus to the lacrimal sac has two histological characteristics: numerous free cell aggregates (= lymphoid structure) and numerous venules and capillaries (= cavernous structure).</description><identifier>ISSN: 0030-154X</identifier><identifier>EISSN: 1881-1736</identifier><identifier>DOI: 10.2535/ofaj1936.77.5_155</identifier><identifier>PMID: 11218713</identifier><language>eng</language><publisher>Japan: Editorial Board of Okajimas Folia Anatomica Japonica</publisher><subject>Aged ; Aged, 80 and over ; Canaliculus ; Capillaries - ultrastructure ; Common canaliculus ; Epithelial Cells - ultrastructure ; Female ; Humans ; Lacrimal Apparatus - blood supply ; Lacrimal Apparatus - ultrastructure ; Lacrimal fluid ; Lacrimal sac ; Male ; Microscopy, Electron, Scanning</subject><ispartof>Okajimas Folia Anatomica Japonica, 2000/12/20, Vol.77(5), pp.155-160</ispartof><rights>Editorial Board of Okajimas Folia Anatomica Japonica</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5055-410b3349c197864f20dc9d23ed6b57c38ffbbdc52d65454de47c3e3d59c28a7c3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11218713$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>KOMINAMI, Rieko</creatorcontrib><creatorcontrib>YASUTAKA, Satoru</creatorcontrib><creatorcontrib>TANIGUCHI, Yutaka</creatorcontrib><creatorcontrib>SHINOHARA, Harumichi</creatorcontrib><title>Anatomy and Histology of the Lacrimal Fluid Drainage System</title><title>Okajimas Folia Anatomica Japonica</title><addtitle>Okajimas Folia Anat. Jpn.</addtitle><description>Five human specimens of the lacrimal canaliculus and sac were examined by light and scanning electron microsopy. The superior and inferior lacrimal canaliculi are lined with stratified squamous epithelium that is nonkeratinized and non-mucin-producing. The common canaliculus is also lined with stratified squamous epithelium, but its lumen is much narrower than the lumen of the superior and inferior canaliculi. The common canaliculus opens into an ample space called the vestibule, where the epithelium changes to high pseudostratified columnar and then low pseudostratified columnar. The vestibule continues to the infundibulum of the lacrimal sac. The infundibulum is formed by several epithelial folds that radiate from the vestibular opening to the lacrimal sac. The vestibule and infundibulum are consistent transitional structures from the common canaliculus to the lacrimal sac. The connective tissue of the lamina propria from the common canaliculus to the lacrimal sac has two histological characteristics: numerous free cell aggregates (= lymphoid structure) and numerous venules and capillaries (= cavernous structure).</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Canaliculus</subject><subject>Capillaries - ultrastructure</subject><subject>Common canaliculus</subject><subject>Epithelial Cells - ultrastructure</subject><subject>Female</subject><subject>Humans</subject><subject>Lacrimal Apparatus - blood supply</subject><subject>Lacrimal Apparatus - ultrastructure</subject><subject>Lacrimal fluid</subject><subject>Lacrimal sac</subject><subject>Male</subject><subject>Microscopy, Electron, Scanning</subject><issn>0030-154X</issn><issn>1881-1736</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkE1PwzAMhiMEYtPYD-CCeuLWESdx04rTGIwhTeIASNyiNEm3Tv0YTXfov6djY0hcbMt-_Mp-CbkGOmHI8a7O9AYSHk2knKACxDMyhDiGECSPzsmQUk5DQPE5IGPv85RSJmKBkFySAQCDWAIfkvtppdu67AJd2WCR-7Yu6lUX1FnQrl2w1KbJS10E82KX2-Cx0XmlVy5463zryitykenCu_Exj8jH_Ol9tgiXr88vs-kyNEgRQwE05VwkBhIZRyJj1JrEMu5slKI0PM6yNLUGmY1QoLBO9E3HLSaGxbqvR-T2oLtt6q-d860qc29cUejK1TuvJEPkLIYehANomtr7xmVquz-_6RRQtTdN_ZqmpFQ_pvU7N0fxXVo6-7dxtKgHHg7Axrf97ydAN21uCvdPsg-96mlo1rpRruLf9n5_VQ</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>KOMINAMI, Rieko</creator><creator>YASUTAKA, Satoru</creator><creator>TANIGUCHI, Yutaka</creator><creator>SHINOHARA, Harumichi</creator><general>Editorial Board of Okajimas Folia Anatomica Japonica</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2000</creationdate><title>Anatomy and Histology of the Lacrimal Fluid Drainage System</title><author>KOMINAMI, Rieko ; YASUTAKA, Satoru ; TANIGUCHI, Yutaka ; SHINOHARA, Harumichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5055-410b3349c197864f20dc9d23ed6b57c38ffbbdc52d65454de47c3e3d59c28a7c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Canaliculus</topic><topic>Capillaries - ultrastructure</topic><topic>Common canaliculus</topic><topic>Epithelial Cells - ultrastructure</topic><topic>Female</topic><topic>Humans</topic><topic>Lacrimal Apparatus - blood supply</topic><topic>Lacrimal Apparatus - ultrastructure</topic><topic>Lacrimal fluid</topic><topic>Lacrimal sac</topic><topic>Male</topic><topic>Microscopy, Electron, Scanning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KOMINAMI, Rieko</creatorcontrib><creatorcontrib>YASUTAKA, Satoru</creatorcontrib><creatorcontrib>TANIGUCHI, Yutaka</creatorcontrib><creatorcontrib>SHINOHARA, Harumichi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Okajimas Folia Anatomica Japonica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KOMINAMI, Rieko</au><au>YASUTAKA, Satoru</au><au>TANIGUCHI, Yutaka</au><au>SHINOHARA, Harumichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anatomy and Histology of the Lacrimal Fluid Drainage System</atitle><jtitle>Okajimas Folia Anatomica Japonica</jtitle><addtitle>Okajimas Folia Anat. Jpn.</addtitle><date>2000</date><risdate>2000</risdate><volume>77</volume><issue>5</issue><spage>155</spage><epage>160</epage><pages>155-160</pages><issn>0030-154X</issn><eissn>1881-1736</eissn><abstract>Five human specimens of the lacrimal canaliculus and sac were examined by light and scanning electron microsopy. The superior and inferior lacrimal canaliculi are lined with stratified squamous epithelium that is nonkeratinized and non-mucin-producing. The common canaliculus is also lined with stratified squamous epithelium, but its lumen is much narrower than the lumen of the superior and inferior canaliculi. The common canaliculus opens into an ample space called the vestibule, where the epithelium changes to high pseudostratified columnar and then low pseudostratified columnar. The vestibule continues to the infundibulum of the lacrimal sac. The infundibulum is formed by several epithelial folds that radiate from the vestibular opening to the lacrimal sac. The vestibule and infundibulum are consistent transitional structures from the common canaliculus to the lacrimal sac. The connective tissue of the lamina propria from the common canaliculus to the lacrimal sac has two histological characteristics: numerous free cell aggregates (= lymphoid structure) and numerous venules and capillaries (= cavernous structure).</abstract><cop>Japan</cop><pub>Editorial Board of Okajimas Folia Anatomica Japonica</pub><pmid>11218713</pmid><doi>10.2535/ofaj1936.77.5_155</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Okajimas Folia Anatomica Japonica, 2000/12/20, Vol.77(5), pp.155-160 |
| issn | 0030-154X 1881-1736 |
| language | eng |
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| source | J-STAGE Free; MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Aged Aged, 80 and over Canaliculus Capillaries - ultrastructure Common canaliculus Epithelial Cells - ultrastructure Female Humans Lacrimal Apparatus - blood supply Lacrimal Apparatus - ultrastructure Lacrimal fluid Lacrimal sac Male Microscopy, Electron, Scanning |
| title | Anatomy and Histology of the Lacrimal Fluid Drainage System |
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