短橈側手根伸筋
WordNet
- relating to or near the radius; "the radial aspect of the forearm"
- pneumatic tire that has radial-ply casing (同)radial tire, radial-ply_tire
- arranged like rays or radii; radiating from a common center; "radial symmetry"; "a starlike or stellate arrangement of petals"; "many cities show a radial pattern of main highways" (同)stellate, radiate
- issuing in rays from a common center; relating to rays of light; "radial heat"
- relating to or moving along or having the direction of a radius; "radial velocity"
- a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work" (同)auto, automobile, machine, motorcar
- where passengers ride up and down; "the car was on the top floor" (同)elevator car
- the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant (同)gondola
- a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails" (同)railcar, railway car, railroad car
- any of various freshwater fish of the family Cyprinidae
- the lean flesh of a fish that is often farmed; can be baked or braised
PrepTutorEJDIC
- 光線の / 放射状の / 半径の
- =radial-ply tire
- 『自動車』(automobile)電車(streetcar) / 《米》(鉄道の)『車両』;客車,貨車 / (気球などの)かご;(エレベーターの)箱
- コイ
- (…の)揚げ足取りをする,(…を)とがめだてする《+『at』(『about』)+『名』》
- あら捜しの,口やかましい
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/07 13:33:05」(JST)
[Wiki en表示]
| Extensor carpi radialis brevis |
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Posterior surface of the left forearm. Superficial muscles. The partially obscured extensor carpi radialis brevis is shown in blue.
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| Details |
| Origin |
humerus at the anterior of lateral epicondyle (common extensor tendon)[1] |
| Insertion |
Posterior base of the 3rd metacarpal[1] |
| Artery |
radial artery |
| Nerve |
deep branch of the radial nerve |
| Actions |
extensor and abductor of the hand at the wrist joint[1] |
| Antagonist |
Flexor carpi ulnaris muscle |
| Identifiers |
| Latin |
musculus extensor carpi radialis brevis |
| TA |
A04.6.02.041 |
| FMA |
38497 |
| Anatomical terms of muscle
[edit on Wikidata]
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In human anatomy, extensor carpi radialis brevis is a muscle in the forearm that acts to extend and abduct the wrist. It is shorter and thicker than its namesake extensor carpi radialis longus which can be found above the proximal end of the extensor carpi radialis brevis.
Contents
- 1 Origin and insertion
- 2 Relations
- 3 Innervation
- 4 Action
- 5 Additional images
- 6 References
Origin and insertion
It arises from the lateral epicondyle of the humerus, by the common extensor tendon; from the radial collateral ligament of the elbow-joint; from a strong aponeurosis which covers its surface; and from the intermuscular septa between it and the adjacent muscles.[2]
The fibres end approximately at the middle of the forearm in the form of a flat tendon, which is closely connected with that of the extensor carpi radialis longus, and accompanies it to the wrist; it passes beneath the abductor pollicis longus and extensor pollicis brevis, beneath the extensor retinaculum, and inserts into the lateral dorsal surface of the base of the third metacarpal bone, with a few fibres inserting into the medial dorsal surface of the second metacarpal bone.[2]
Relations
Under the extensor retinaculum the tendon lies on the back of the radius in a shallow groove, to the ulnar side of that which lodges the tendon of the extensor carpi radialis longus, and separated from it by a faint ridge.[2]
Innervation
Like all the muscles in the posterior forearm, ECR brevis is supplied by a branch of the radial nerve.
Action
It is an extensor, and an abductor of the hand at the wrist joint. That is, it serves to manipulate the wrist so that the hand moves away from the palm and towards the thumb. The muscle, like all extensors of the forearm, can be strengthened by exercise that resist its extension. A wrist roller can be used and reverse wrist curls with dumbbells can be performed.
Additional images
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Bones of left forearm. Posterior aspect.
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Bones of the left hand. Dorsal surface.
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Cross-section through the middle of the forearm.
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Posterior surface of the forearm. Deep muscles.
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Transverse section across distal ends of radius and ulna.
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Transverse section across the wrist and digits.
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The mucous sheaths of the tendons on the back of the wrist.
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Extensor carpi radialis brevis muscle
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Extensor carpi radialis brevis muscle
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Extensor carpi radialis brevis muscle
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Extensor carpi radialis brevis muscle
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Extensor carpi radialis brevis muscle
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References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ^ a b c Origin, insertion and nerve supply of the muscle at Loyola University Chicago Stritch School of Medicine
- ^ a b c Gray's Anatomy 1918, see infobox
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Muscles of the arm
|
|
| Shoulder |
- deltoid
- rotator cuff
- supraspinatus
- infraspinatus
- teres minor
- subscapularis
- teres major
|
|
| fascia: |
- deltoid fascia
- supraspinous fascia
- infraspinous fascia
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|
|
Arm
(compartments) |
| anterior |
- coracobrachialis
- biceps
- brachialis
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|
| posterior |
- triceps brachii
- anconeus
- articularis cubiti
|
|
| fascia |
- axillary sheath
- axillary fascia
- brachial fascia
- intermuscular septa
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|
| other |
- spaces
- quadrangular space
- triangular space
- triangular interval
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|
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| Forearm |
| anterior |
| superficial: |
- pronator teres
- palmaris longus
- flexor carpi radialis
- flexor carpi ulnaris
- flexor digitorum superficialis
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| deep: |
- pronator quadratus
- flexor digitorum profundus
- flexor pollicis longus
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| posterior |
| superficial: |
- mobile wad
- brachioradialis
- extensor carpi radialis longus and brevis
- extensor digitorum
- extensor digiti minimi
- extensor carpi ulnaris
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| deep: |
- supinator
- anatomical snuff box
- abductor pollicis longus
- extensor pollicis brevis
- extensor pollicis longus
- extensor indicis
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| fascia |
- bicipital aponeurosis
- common tendons
- antebrachial fascia
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| other |
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| Hand |
| lateral volar |
- thenar
- opponens pollicis
- flexor pollicis brevis
- abductor pollicis brevis
- adductor pollicis
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| medial volar |
- hypothenar
- opponens digiti minimi
- flexor digiti minimi brevis
- abductor digiti minimi
- palmaris brevis
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| intermediate |
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| fascia |
| posterior: |
- extensor retinaculum
- extensor expansion
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| anterior: |
- flexor retinaculum
- palmar aponeurosis
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UpToDate Contents
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English Journal
- Anatomical Study of the Surgical Approaches to the Radial Tunnel.
- Urch EY1, Model Z1, Wolfe SW1, Lee SK2.
- The Journal of hand surgery.J Hand Surg Am.2015 Jul;40(7):1416-20. doi: 10.1016/j.jhsa.2015.03.009. Epub 2015 Apr 18.
- PURPOSE: To provide a cadaveric analysis of 3 surgical approaches (anterior, anterolateral, posterior) used for decompression of the posterior interosseous nerve within the radial tunnel. The aim of the study was to determine whether the number of compression sites visualized and safely released dif
- PMID 25899182
- Persistent pain after surgery for enthesopathy of the extensor carpi radialis brevis origin.
- Graham DJ1, Smith GC2.
- The Journal of hand surgery.J Hand Surg Am.2015 May;40(5):1012-5. doi: 10.1016/j.jhsa.2015.01.031. Epub 2015 Mar 18.
- PMID 25796379
- An anatomic and kinematic analysis of a new total wrist arthroplasty design.
- Hooke AW1, Pettersson K2, Sagerfors M2, An KN1, Rizzo M3.
- Journal of wrist surgery.J Wrist Surg.2015 May;4(2):121-7. doi: 10.1055/s-0035-1549288.
- Background Total wrist arthroplasty (TWA) is a viable surgical treatment for disabling wrist arthritis. While current designs are a notable improvement from prior generations, radiographic loosening and failures remain a concern. Purpose The purpose of this investigation is to evaluate a new tot
- PMID 25945297
Japanese Journal
- 難治性テニス肘の画像診断 : MRIによる短橈側手根伸筋(ECRB)腱信号変化とsynovial fringeの評価 (シンポジウム 難治性テニス肘はこうみる)
- ステロイド局所注射後に手根伸筋腱起始部の断裂をきたした上腕骨外側上顆炎の1例
- 上腕骨外側上顆炎に対する筋膜切開術と短橈側手根伸筋腱延長術の検討
- 日本手の外科学会雑誌 = The journal of Japanese Society for Surgery of the Hand 24(6), 1103-1107, 2008-11-25
- NAID 10031154044
Related Links
- In human anatomy, extensor carpi radialis brevis is a muscle in the forearm that acts to extend and abduct the wrist. It is shorter and thicker than its namesake extensor carpi radialis longus which can be found above the proximal end ...
- extensor carpi radialis brevis Etymology: L, extendere + Gk, karpos, wrist; L, radius, ray, brevis, short one of the muscles of the posterior forearm. It inserts into the dorsal surface of the third metacarpal bone and functions to extend ...
★リンクテーブル★
[★]
- 英
- extensor carpi radialis brevis (K), extensor carpi radialis brevis muscle
- 関
- 長橈側手根伸筋, 橈側手根伸筋
起始
停止
機能
カテゴリ
前腕の伸筋＞:前腕の伸筋
[★]
- 関
- radiant、radiata、radiatum、radii、radius
[★]
コイ
- 関
- Barbus、Cyprinidae、Cypriniformes、Cyprinus、Cyprinus carpio、loach、minnow、roach、Rutilus rutilus
[★]
短い
- 関
- brief、short
[★]
- 関
- automobile、motor vehicle
[★]
- 関
- carpal、carpus