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Pronator Quadratus News 
Rihanna - Take A BowMusic video by Rihanna performing Take A Bow. YouTube view counts pre-VEVO: 66288884. (C) 2008 The Island Def Jam Music Group.
Rihanna - Rehab ft. Justin TimberlakeMusic video by Rihanna performing Rehab. YouTube view counts pre-VEVO: 19591123. (C) 2007 The Island Def Jam Music Group.
Key & Peele: Substitute TeacherA substitute teacher from the inner city refuses to be messed with while taking attendance.
MACKLEMORE X RYAN LEWIS - OTHERSIDE REMIX FEAT. FENCES [MUSIC VIDEO]The Otherside Remix Music Video was filmed in various locations for about a year and a half throughout 2010-2011. It is the duo's second video collaboration ...
P!nk - Try (The Truth About Love - Live From Los Angeles)Music video by P!nk performing Try (The Truth About Love - Live From Los Angeles). (C) 2012 RCA Records, a division of Sony Music Entertainment.
David Guetta - Just One Last Time ft. Taped Rai"Just One Last Time" feat. Taped Rai. Available to download on iTunes including remixes of : Tiësto, HARD ROCK SOFA & Deniz Koyu http://smarturl.it/DGJustOne...
YOLO (feat. Adam Levine & Kendrick Lamar)YOLO is available on iTunes now! http://smarturl.it/lonelyIslandYolo New album coming soon... Check out the awesome band the music in YOLO is sampled from Th...
MACKLEMORE & RYAN LEWIS - CAN'T HOLD US FEAT. RAY DALTON (OFFICIAL MUSIC VIDEO)Macklemore & Ryan Lewis present the official music video for Can't Hold Us feat. Ray Dalton. Can't Hold Us on iTunes: https://itunes.apple.com/us/album/cant-...
Draw My Life- Jenna MarblesThis video accidentally turned out kind of sad, ME SO SOWWY IT NOT POSED TO BE SAD WHO WANTS HUGS AND COOKIES? Also, FYI for anyone attempting this, it takes...
Fun.: We Are Young ft. Janelle Monáe [OFFICIAL VIDEO]Fun.'s music video for 'We Are Young' featuring Janelle Monáe from the full-length album, Some Nights - available now on Fueled By Ramen. Visit http://ournam...
Expectations vs Reality: RomanceWhat people expect romance to be vs what it really is... Follow Catherine! https://twitter.com/CDekoekkoek Check out my 2nd Channel for more vlogs: http://ww...
| Pronator quadratus muscle | |
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| Anterior view of left forearm. Deep muscles. (Pronator quadratus visible at bottom-center right.) | |
| Latin | musculus pronator quadratus |
| Gray's | subject #125 449 |
| Origin | medial, anterior surface of the ulna |
| Insertion | lateral, anterior surface of the radius |
| Artery | anterior interosseous artery |
| Nerve | median nerve (anterior interosseous nerve) |
| Actions | pronates the forearm |
| Antagonist | Supinator muscle |
Pronator quadratus is a square shaped muscle on the distal forearm that acts to pronate (turn so the palm faces downwards) the hand.
As it is on the anterior side of the arm, it is innervated by a branch of the median nerve, the anterior interosseous nerve (roots C8 and T1 with T1 being primary). Arterial blood comes via the interosseous artery.
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Origin and insertion [edit]
Its fibers run perpendicular to the direction of the arm, running from the most distal quarter of the anterior ulna to the distal quarter of the anterior radius. It is the only muscle that attaches only to the ulna at one end and the radius at the other end.
Action [edit]
When pronator quadratus contracts, it pulls the lateral side of the radius towards the ulna, thus pronating the hand. Its deep fibers serve to keep the two bones in the forearm bound together.
Additional Images [edit]
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Pronator quadratus muscle
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Pronator quadratus muscle
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Pronator quadratus muscle
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Pronator quadratus muscle
External links [edit]
- 114294862 at GPnotebook
- UWASH pronatorquadratus
- Pronator+quadratus+muscle at eMedicine Dictionary
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This muscle article is a stub. You can help Wikipedia by expanding it. |
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