Abductor Pollicis Longus: Difference between revisions

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== Description  ==
== Description  ==
The Abductor pollicis longus (APL) is one of a deep extensor of the forearm and is responsible for facilitating movement and stabilization of the thumb. It's tendon is present in the first extensor compartment of the wrist.


=== Origin ===
=== Origin ===


The APL originates from the posterior surface of Ulna, the middle third of the posterior surface of Radius and the radio-ulnar interosseous membrane.


=== Insertion  ===


<br>
It inserts into the base of first Metacarpal. Accessory tendons of APL are also found to insert into the base of trapezium and thenar structures. <br>
 
=== Insertion<br>  ===
 
<br>


=== Nerve<br> ===
=== Nerve<br> ===


 
It is supplied by the Posterior Interosseous nerve (C7-C8) which is a continuation of the deep branch of Radial nerve.


=== Artery<br>  ===
=== Artery<br>  ===
Posterior interosseous artery


== Function<br> ==
== Function<br> ==

Revision as of 21:10, 2 November 2017

Description[edit | edit source]

The Abductor pollicis longus (APL) is one of a deep extensor of the forearm and is responsible for facilitating movement and stabilization of the thumb. It's tendon is present in the first extensor compartment of the wrist.

Origin[edit | edit source]

The APL originates from the posterior surface of Ulna, the middle third of the posterior surface of Radius and the radio-ulnar interosseous membrane.

Insertion[edit | edit source]

It inserts into the base of first Metacarpal. Accessory tendons of APL are also found to insert into the base of trapezium and thenar structures.

Nerve
[edit | edit source]

It is supplied by the Posterior Interosseous nerve (C7-C8) which is a continuation of the deep branch of Radial nerve.

Artery
[edit | edit source]

Posterior interosseous artery

Function
[edit | edit source]


Clinical relevance[edit | edit source]

Assessment[edit | edit source]



Treatment[edit | edit source]

Resources[edit | edit source]


See also[edit | edit source]

Recent Related Research (from Pubmed)[edit | edit source]

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References[edit | edit source]