File:Human extraocular muscles 01.jpg: Difference between revisions

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Human Extraocular Muscles

Cartoon showing attachment of the human 6 extraocular muscles to the eyeball.

Legend

About the Muscles

IR - inferior rectus
SR - superior rectus
LR - lateral rectus
MR - medial rectus
SO - superior oblique
IO - inferior oblique

Five of the six muscles (inferior rectus, superior rectus, lateral rectus, medial rectus, and superior oblique) originate at a common tendinous ring of fibrous tissue (the Annulus of Zinn).
- The Annulus of Zinn surrounds the optic nerve, ophthalmic artery, and ophthalmic vein at their entrance through the apex of the orbit.
The sixth muscle (inferior oblique) has a separate origin point on the orbital side of the bony maxilla at the anterior inferomedial strut.

Muscle Structure
Each muscle has 2 equally sized layers.
Layer	Inserts	Single innervation (%)
outer orbital	connective tissue ring	80
inner global	eye sclera	90

Historic Embryology - Vision
Historic Embryology: 1906 Eye Embryology \| 1907 Development Atlas \| 1912 Eye Development \| 1912 Nasolacrimal Duct \| 1917 Extraocular Muscle \| 1918 Grays Anatomy \| 1921 Eye Development \| 1922 Optic Primordia \| 1925 Eyeball and optic nerve \| 1925 Iris \| 1927 Oculomotor \| 1928 Human Retina \| 1928 Retina \| 1928 Hyaloid Canal \| Historic Disclaimer

Muscle Development

Reference

<pubmed>22132088</pubmed>| PLoS One.

Citation: Kasprick DS, Kish PE, Junttila TL, Ward LA, Bohnsack BL, et al. (2011) Microanatomy of Adult Zebrafish Extraocular Muscles. PLoS ONE 6(11): e27095. doi:10.1371/journal.pone.0027095

Copyright

© 2011 Kasprick et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Figure 1. doi:10.1371/journal.pone.0027095.g001 Pone.0027095.g001.jpg Text modified from figure legend and paper text.

Cite this page: Hill, M.A. (2024, April 16) Embryology Human extraocular muscles 01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human_extraocular_muscles_01.jpg

What Links Here?

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:04, 8 June 2012		500 × 600 (47 KB)	Z8600021 (talk \| contribs)	==Human Extraocular Muscles== Illustration of human eye showing 6 EOMs inserting on the globe in what is referred to as the Spiral of Tillaux. ===Reference== <pubmed>22132088</pubmed>\| [http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone

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@@ Line 3: / Line 3: @@
 Cartoon showing attachment of the human 6 extraocular muscles to the eyeball.
 {|
+! Legend
+! About the Muscles
+|-
 | width=230px|
-===Legend===
 * '''IR''' - inferior rectus
 * '''SR''' - superior rectus
@@ Line 12: / Line 14: @@
 * '''IO''' - inferior oblique
 | width=500px valign=top|
-===About the Muscles===
 * Five of the six muscles (inferior rectus, superior rectus, lateral rectus, medial rectus, and superior oblique) originate at a common tendinous ring of fibrous tissue (the Annulus of Zinn).
 ** The Annulus of Zinn surrounds the optic nerve, ophthalmic artery, and ophthalmic vein at their entrance through the apex of the orbit.
 * The sixth muscle (inferior oblique) has a separate origin point on the orbital side of the bony maxilla at the anterior inferomedial strut.
+|}
+<br>
+{|
+! Muscle Structure
+|-
+| colspan=2|Each muscle has 2 equally sized layers.
+|-
+! Layer
+! Inserts
+! Single innervation (%)
+|-
+| outer orbital
+| connective tissue ring
+| 80
+|-
+| inner global
+| eye sclera
+| 90
 |}
-===Muscle Structure===
-Each muscle has 2 equal sized layers:
-# inner global layer - inserts on the eye.
-# outer orbital layer - inserts on a connective tissue ring.
-(Text modified from figure legend and paper text)
+{{Vision Links}}
+<br>
+[[Musculoskeletal_System_-_Muscle_Development|'''Muscle Development''']]
 ===Reference===
@@ Line 31: / Line 47: @@
 Citation: Kasprick DS, Kish PE, Junttila TL, Ward LA, Bohnsack BL, et al. (2011) Microanatomy of Adult Zebrafish Extraocular Muscles. PLoS ONE 6(11): e27095. doi:10.1371/journal.pone.0027095
+====Copyright====
+© 2011 Kasprick et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
-Copyright: © 2011 Kasprick et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
+Figure 1.  doi:10.1371/journal.pone.0027095.g001 Pone.0027095.g001.jpg Text modified from figure legend and paper text.
-Figure 1.  doi:10.1371/journal.pone.0027095.g001
-Pone.0027095.g001.jpg
-Text modified from figure legend and paper text.
+{{Footer}}
 [[Category:Human]] [[Category:Vision]] [[Category:Muscle]] [[Category:Cartoon]]