flexor digitorum superficialis

浅指屈筋

WordNet

1. exhibit the strength of; "The victorious army flexes its invincibility"
2. the act of flexing; "he gave his biceps a flex to impress the ladies"
3. bend a joint; "flex your wrists"; "bend your knees" (同)bend
4. cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar" (同)bend, deform, twist, turn
5. contract; "flex a muscle"
6. of, affecting, or being on or near the surface; "superficial measurements"; "the superficial area of the wall"; "a superficial wound"
7. of little substance or significance; "a few superficial editorial changes"; "only trivial objections" (同)trivial
8. concerned with or comprehending only what is apparent or obvious; not deep or penetrating emotionally or intellectually; "superficial similarities"; "a superficial mind"; "his thinking was superficial and fuzzy"; "superficial knowledge"; "the superficial report didnt give the true picture"; "only superficial differences"

PrepTutorEJDIC

1. (仕事などを始める準備運動として)〈手足など〉‘を'曲げる,〈筋肉〉‘を'縮める
2. 電線,電気のコード
3. 表面の(にある),表面的な / (考えなどが)浅薄な,皮相的な

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/06/01 19:08:17」(JST)

wiki en

[Wiki en表示]

Flexor digitorum superficialis
Transverse section across distal ends of radius and ulna. (Flexor dig. subliminis labeled at center top.)
Latin	musculus flexor digitorum superficialis
Gray's	p.448
Origin	medial epicondyle of the humerus (common flexor tendon) as well as parts of the radius and ulna.
Insertion	anterior margins on the bases of the middle phalanges of the four fingers
Artery	ulnar artery
Nerve	median nerve
Actions	flexor of fingers (primarily at proximal interphalangeal joints)
Antagonist	Extensor digitorum muscle
Anatomical terms of muscle

Flexor digitorum superficialis (flexor digitorum sublimis) is an extrinsic flexor muscle of the fingers at the proximal interphalangeal joints.

It is in the anterior compartment of the forearm. It is sometimes considered to be the deepest part of the superficial layer of this compartment, and sometimes considered to be a distinct, "intermediate layer" of this compartment. It is relatively common for the Flexor digitorum superficialis to be missing from the little finger, bilaterally and unilaterally, which can cause problems when diagnosing a little finger injury.

Origin and Insertion

The muscle has two classically described heads - the humeroulnar and radial - and it is between these heads that the median nerve and ulnar artery pass. The ulnar collateral ligament of elbow joint gives its origin to part of this muscle.

Four long tendons come off this muscle near the wrist and travel through the carpal tunnel formed by the flexor retinaculum. These tendons, along with those of flexor digitorum profundus, are enclosed by a common flexor sheath. The tendons attach to the anterior margins on the bases of the intermediate phalanges of the four fingers. These tendons have a split (Camper's Chiasm) at the end of them through which the tendons of flexor digitorum profundus pass.

Function

The primary function of flexor digitorum superficialis is flexion of the middle phalanges of the fingers at the proximal interphalangeal joints, however under continued action it also flexes the metacarpophalangeal joints and wrist joint.

To test flexor digitorum superficialis, one finger is flexed at the proximal interphalangeal joint against resistance, while the remaining three fingers are held fully extended (to inactivate flexor digitorum profundus).

Innervation

Median nerve (C7, C8, T1)

Additional images

• Bones of left forearm. Anterior aspect.

• Bones of the left hand. Volar surface.

• Tendons of forefinger and vincula tendina.

• Cross-section through the middle of the forearm.

• Transverse section across the wrist and digits.

• The mucous sheaths of the tendons on the front of the wrist and digits.

• The muscles of the thumb.

• The muscles of the left hand. Palmar surface.

• The radial and ulnar arteries.

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Flexor digitorum superficialis muscle

• Muscles of upper limb.Cross section.

References

External links

• Origin, insertion and nerve supply of the muscle at Loyola University Chicago Stritch School of Medicine
• UWASH flexordigsuperficialis
• Flexor+digitorum+superficialis+muscle at eMedicine Dictionary

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. 遠位指節間関節の屈筋腱の損傷 （ジャージー指） flexor tendon injury of the distal interphalangeal joint jersey finger
• 2. 手指の解剖学 finger and thumb anatomy
• 3. 中節骨骨折 middle phalanx fractures
• 4. 手首の解剖学および基本的な生体力学 anatomy and basic biomechanics of the wrist
• 5. 手根管症候群に対する外科手術 surgery for carpal tunnel syndrome

English Journal

• A Cadaver Study of Median-to-Radial Nerve Transfer for Radial Nerve Injuries.

• Sukegawa K1, Suzuki T2, Ogawa Y3, Kobayashi T3, Matsuura Y3, Kuniyoshi K3.
• The Journal of hand surgery.J Hand Surg Am.2016 Jan;41(1):20-6. doi: 10.1016/j.jhsa.2015.10.015.
• PURPOSE: To assess the anatomic feasibility of a median-to-radial nerve transfer in cadaver limbs and to quantify the number of axons present in the cut ends of the involved donor and recipient nerves.METHODS: Ten fresh frozen cadaveric upper limbs were dissected. We investigated whether the flexor
• PMID 26710730

• Collateral Ligament Reconstruction of the Proximal Interphalangeal Joint.

• Carlo J1, Dell PC1, Matthias R1, Wright TW2.
• The Journal of hand surgery.J Hand Surg Am.2016 Jan;41(1):129-32. doi: 10.1016/j.jhsa.2015.10.007. Epub 2015 Nov 21.
• Proximal interphalangeal joint collateral ligament injuries are common; however, chronic instability of this joint is rare. In such cases, however, there is no consensus on optimal management. Various repairs and reconstructions have been devised, although the literature on outcomes remains scant. W
• PMID 26614593

• Results of nerve grafting in radial nerve injuries occurring proximal to the humerus, including those within the posterior cord.

• Bertelli JA1, Ghizoni MF1.
• Journal of neurosurgery.J Neurosurg.2016 Jan;124(1):179-85. doi: 10.3171/2014.12.JNS141944. Epub 2015 Aug 14.
• OBJECT Results of radial nerve grafting are largely unknown for lesions of the radial nerve that occur proximal to the humerus, including those within the posterior cord. METHODS The authors describe 13 patients with proximal radial nerve injuries who were surgically treated and then followed for at
• PMID 26274998

Japanese Journal

• 把持対象物の形状と作業面の高さが上肢負担に与える影響(理論・技術)

• 肥田 拓哉,茅原 崇徳,瀬尾 明彦
• 日本経営工学会論文誌 62(5), 222-229, 2011-12-15
• 本研究では,立位姿勢での品物や部品を並べる作業を想定した実験を行い,把持対象物の形状と作業面の高さが異なる場合の上肢負担を明らかにすることを目的とした.被験者は上肢に疼痛のない健常な男子学生10名,実験条件は品物に見たてた把持対象物の形状が3条件,品物を並べる棚に見たてた作業面の高さが2条件とし,これらを組み合わせた計6条件で実験を行った.測定項目は,把持力分布測定システムを用いた把持力および筋電 …
• NAID 110008898465

• 再発した浅指屈筋拘縮症の1例

• 小島 敏雄,長尾 聡哉,豊泉 泰洋,長岡 正宏,阿部 健男,徳橋 泰明
• 東日本整形災害外科学会雑誌 = Journal of the Eastern Japan Association of Orthopaedics and Traumatology 23(1), 126-129, 2011-03-31
• NAID 10028163747

Related Links

• flexor digitorum superficialis - definition of flexor digitorum ...

flexor digitorum superficialis, the largest superficial muscle of the forearm, lying in the second of four layers. The muscle flexes the second phalanx of each finger and, by continued action, the hand. Also called flexor digitorum ...

• Flexor Digitorum Superficialis — UW Radiology

Flexor Digitorum Superficialis Flexor Pollicis Brevis Flexor Pollicis Longus Infraspinatus Interosseous Muscles, Dorsal Interosseous Muscles, Palmar Latissimus Dorsi Levator Scapulae Opponens Digiti Minimi Opponens Pollicis ...

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★リンクテーブル★

リンク元	「浅指屈筋」「浅指屈筋腱」
関連記事	「superficial」「flex」「flexor」「digitorum」

「浅指屈筋」

　　[★]

英

flexor digitorum superficialis (K,KL,M) FDS, flexor digitorum superficialis muscle(N), superficial flexor muscle of finger

ラ

musculus flexor digitorum superficialis

関

深指屈筋

起始

• 上腕骨(内側上顆)、尺骨(鈎状突起)、橈骨(外側)

停止

• 第2-5指骨(中節骨の両側)

神経

• 正中神経

機能

• 第2-5指の屈曲(PIP関節)、手関節掌屈
• 指の屈筋は浅指屈筋と深指屈筋のみ (K.O-5)
• 指の屈筋群の共通の腱鞘である総滑液鞘を通り抜け、第2-5指骨(中節骨の両側)に停止 (K.O-5)
• 停止のごく近位で腱が二分し、その間を深指屈筋の腱が通る (K.O-5)

「浅指屈筋腱」

　　[★]

ラ

flexor digitorum superficialis

「superficial」

　　[★]

• adj.

• 表在性の、表在の、表層性の、表面の、外面的な、表面上の

関

face、ostensibly、superficially、surface

　 　 　 　

「flex」

　　[★]

• n.

• 屈曲

• v.

• 曲がる、曲げる

関

bend、bending、curvature、curve、flexion、inflection

　 　 　 　 　 　 　

「flexor」

　　[★]

• n.

• 屈筋、屈側の、屈側性

関

flexor muscle

「digitorum」

　　[★]

• extensor digitorum longus muscle