Extensor digiti minimi muscle: Difference between revisions
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Taylornate (talk | contribs) Undid revision 485151028 by Manfi (talk) Talk:Extrinsic_extensor_muscles_of_the_hand#RFC_on_reversion_of_merge |
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{{Muscle infobox | |
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Name = Extensor digiti minimi | |
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Latin = musculus extensor digiti minimi | |
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GraySubject = 125 | |
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GrayPage = 451 | |
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Image = Gray424.png | |
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Caption = The mucous sheaths of the tendons on the back of the wrist. (Extensor digiti quinti proprius labeled at center left.) | |
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Image2 = | |
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Caption2 = | |
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Origin = the anterior portion of the [[lateral epicondyle]] of the [[humerus]] ([[common extensor tendon]]) | |
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Insertion = at the [[extensor expansion]], located at the base of the [[proximal phalanx]] of digit V on the dorsal side | |
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Blood = [[posterior interosseous artery]] | |
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Nerve = [[posterior interosseous nerve]] (C7, 8) | |
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Action = extends the [[little finger]] at all joints | |
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Antagonist = [[Flexor digiti minimi brevis (hand)|Flexor digiti minimi brevis]] | |
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MeshName = | |
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MeshNumber = | |
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DorlandsPre = m_22 | |
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DorlandsSuf = 12548878 | |
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}} |
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The '''extensor minimi digiti''' ('''extensor digiti quinti proprius''') is a slender muscle of the [[forearm]], placed on the ulnar side of the [[Extensor digitorum communis]], with which it is generally connected. |
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It arises from the common Extensor tendon by a thin tendinous slip, from the [[intermuscular septa]] between it and the adjacent muscles. |
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#REDIRECT [[Extrinsic extensor muscles of the hand]] |
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Its tendon runs through a compartment of the [[dorsal carpal ligament]] behind the distal radio-ulnar joint, then divides into two as it crosses the hand, and finally joins the expansion of the [[Extensor digitorum communis]] tendon on the dorsum of the first [[Phalanx bones|phalanx]] of the [[little finger]]. |
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==Variations== |
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An additional fibrous slip from the [[lateral epicondyle]]; the tendon of insertion may not divide or may send a slip to the [[ring finger]]. |
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Absence of muscle rare; fusion of the belly with the [[Extensor digitorum communis]] not uncommon. |
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==Additional images== |
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<gallery> |
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Image:Gray214.png|Bones of left forearm. Posterior aspect. |
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Image:Musculusextensordigitiminimi.png|Posterior surface of the forearm. Superficial muscles. |
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Image:Gray421.png|Transverse section across distal ends of radius and ulna. |
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Image:Gray422.png|Transverse section across the wrist and digits. |
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</gallery> |
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==External links== |
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* {{MuscleLoyola|edm}} |
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* {{MuscleUWash|extdigitiminimi}} |
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* {{KansasHandKinesiology|muscles/eeextdigmini.htm}} |
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{{Gray's}} |
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{{Muscles of upper limb}} |
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[[Category:Muscles of the upper limb]] |
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[[ar:عضلة باسطة للخنصر]] |
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[[de:Musculus extensor digiti minimi]] |
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[[fr:Muscle extenseur du petit doigt]] |
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[[gl:Músculo extensor do dedo maimiño]] |
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[[hr:Ispružač malog prsta]] |
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[[id:Otot extensor digiti minimi]] |
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[[he:השריר פושט הזרת]] |
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[[hu:Kisujjfeszítő izom]] |
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[[nl:Musculus extensor digiti minimi]] |
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[[ja:小指伸筋]] |
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[[pl:Mięsień prostownik palca małego]] |
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[[pt:Músculo extensor do dedo mínimo]] |
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[[ru:Разгибатель мизинца]] |
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[[sv:Extensor digiti minimi]] |
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[[th:กล้ามเนื้อเอกซ์เทนเซอร์ ดิจิไต มินิไม]] |
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Revision as of 20:34, 2 April 2012
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