Abductor pollicis longus muscle
Updates to Article Attributes
Body
was changed:
The abductor pollicislongus is a muscle found in the deep posterior compartment of the forearm. Asit descends, it becomes superficial and passes under the extensor retinaculumbefore attaching distally.
-
origin:
– posteriorposterior surfaces of ulna, radius and interosseous membrane -
insertion:
– viavia tendon, usually dividing into two slips, one attaching to the base of 1stmetacarpal, the other attaching to the trapezium -
innervation:
– posteriorposterior interosseous nerve (C7, 8) -
action:
– abductsabducts andextends the thumb at the carpometacarpal joint
-------------<p>The <strong>abductor pollicis-longus</strong> is a muscle found in the deep posterior compartment of the forearm. As-it descends, it becomes superficial and passes under the extensor retinaculum-before attaching distally.</p><ul>-<li>-<strong>origin</strong> – posterior-surfaces of ulna, radius and interosseous membrane</li>-<li>-<strong>insertion</strong> – via-tendon, usually dividing into two slips, one attaching to the base of 1st-metacarpal, the other attaching to the trapezium</li>-<li>-<strong>innervation</strong> – posterior-interosseous nerve (C7, 8)</li>-<li>-<strong>action</strong> – abducts and-extends the thumb at the carpometacarpal joint</li>- +<p>The <strong>abductor pollicis longus</strong> is a muscle found in the deep posterior compartment of the forearm. As it descends, it becomes superficial and passes under the extensor retinaculum before attaching distally.</p><ul>
- +<li>
- +<strong>origin: </strong>posterior surfaces of ulna, radius and interosseous membrane</li>
- +<li>
- +<strong>insertion:</strong> via tendon, usually dividing into two slips, one attaching to the base of 1st metacarpal, the other attaching to the trapezium</li>
- +<li>
- +<strong>innervation:</strong> posterior interosseous nerve (C7, 8)</li>
- +<li>
- +<strong>action:</strong> abducts and extends the thumb at the carpometacarpal joint</li>
Unable to process the form. Check for errors and try again.