View source for INTRINSIC MUSCLES OF THE HAND-LUMBRICALS

===== [[Summary Article|'''SUMMARY''']] =====
<i>FIRST &amp; SECOND LUMBRICALS</i>
<br/>1. O: lateral 2 FDP tendons. 2. I: tendons pass through a fibrous lumbrical canal to insert into the <i>lateral side of the extensor expansion</i> of digits 2 &amp; 3. 
<br/>3. NS: digital branches of the median n.
<br/>4. BS: superficial &amp; deep palmar arches.
<br/>
<br/>5. A: extend the interphalangeal joints, flex the MCPJ.
<br/>
<br/><i>THIRD &amp; FOURTH LUMBRICALS</i>
<br/>6. O: medial 2 FDP tendons. 
<br/>7. I: tendons pass through a fibrous lumbrical canal to insert into the <i>lateral side of the extensor expansion</i> of digits 4 &amp; 5.
<br/>
<br/>8. NS: deep branch of the ulnar n. 
<br/>9. BS: superficial &amp; deep palmar arches.
<br/>
<br/>10. A: extend the interphalangeal joints, flex the MCPJ.
<br/>[[Image:intrinsic-muscles-of-the-hand.jpg]]
<br/>Image: Case courtesy of OpenStax College, [https://radiopaedia.org/ Radiopaedia.org]. From the case [https://radiopaedia.org/cases/44017 rID: 44017] [Accessed 18 Nov. 2018].


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

[[Category:Intrinsic Muscles Of The Hand]]
[[Category:Upper Limb]]
[[Category:Anatomy]]