Difference between revisions of "MUSCLES-LUMBRICALS"

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[[Summary Article|<h5>'''SUMMARY'''</h5>]]
[[Summary Article|<h5>'''SUMMARY'''</h5>]]
<br/>1. From each of the 4 FDP tendons arises a lumbrical which passes along the radial side of the MCPJ. 
<br/>1. From each of the 4 FDP tendons arises a lumbrical which passes along the radial side of the MCPJ.
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<br/> 2. On the palmar surface of the deep transverse metacarpal ligament, each develops a tendon which runs in a fibrous <i>lumbrical canal </i>to reach the extensor expansion on the dorsum of the 1st phalanx. 
<br/>2. On the palmar surface of the deep transverse metacarpal ligament, each develops a tendon which runs in a fibrous <i>lumbrical canal </i>to reach the extensor expansion on the dorsum of the 1st phalanx. 
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<br/><i>3. 2 ulnar lumbricals are innervated by ulnar n. & 2 radial lumbricals are innervated by median n.</i>
<br/><i>3. 2 ulnar lumbricals are innervated by ulnar n. & 2 radial lumbricals are innervated by median n.</i>
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<br/><i>4. These flex the MCPJ.</i>
<br/><i>4. These flex the MCPJ.</i>
<br/>[[Image:paste-9500cca6e7aadff060fd7c71402a040d98526ae0.jpg]]
<br/>[[Image:paste-9500cca6e7aadff060fd7c71402a040d98526ae0.jpg]]
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<br/><b>Image: </b>Case courtesy of OpenStax College, [https://radiopaedia.org/ Radiopaedia.org]. From the case [https://radiopaedia.org/cases/44017 rID: 44017] [Accessed 27 Apr 2020].
<br/><b>Image: </b>Case courtesy of OpenStax College, [https://radiopaedia.org/ Radiopaedia.org]. From the case [https://radiopaedia.org/cases/44017 rID: 44017] [Accessed 27 Apr 2020].



Revision as of 12:45, 27 December 2022

SUMMARY


1. From each of the 4 FDP tendons arises a lumbrical which passes along the radial side of the MCPJ.
 2. On the palmar surface of the deep transverse metacarpal ligament, each develops a tendon which runs in a fibrous lumbrical canal to reach the extensor expansion on the dorsum of the 1st phalanx. 

3. 2 ulnar lumbricals are innervated by ulnar n. & 2 radial lumbricals are innervated by median n.
 
4. These flex the MCPJ.
Paste-9500cca6e7aadff060fd7c71402a040d98526ae0.jpg

Image: Case courtesy of OpenStax College, Radiopaedia.org. From the case rID: 44017 [Accessed 27 Apr 2020].

Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.