小胸筋
WordNet
- of your secondary field of academic concentration or specialization
- limited in size or scope; "a small business"; "a newspaper with a modest circulation"; "small-scale plans"; "a pocket-size country" (同)modest, small, small-scale, pocket-size, pocket-sized
- not of legal age; "minor children" (同)nonaged, underage
- warranting only temporal punishment; "venial sin" (同)venial
- inferior in number or size or amount; "a minor share of the profits"; "Ursa Minor"
- lesser in scope or effect; "had minor differences"; "a minor disturbance"
- of a scale or mode; "the minor keys"; "in B flat minor"
- of lesser importance or stature or rank; "a minor poet"; "had a minor part in the play"; "a minor official"; "many of these hardy adventurers were minor noblemen"; "minor back roads"
- of lesser seriousness or danger; "suffered only minor injuries"; "some minor flooding"; "a minor tropical disturbance"
- of the younger of two boys with the same family name; "Jones minor"
- of or relating to the chest or thorax; "pectoral organ" (同)thoracic
- an adornment worn on the chest or breast (同)pectoral medallion
- either of two large muscles of the chest (同)pectoral_muscle, pectoralis, musculus pectoralis, pecs
PrepTutorEJDIC
- 『小さいほうの,少ない』 / (階級・地位・重要性などが)『劣ったほうの』,重要でない / 重大ではない / 未成年の / (音楽で)短調の / 未成年者 / (大学の科目・課程の)副専攻科目 / (音楽で)短調 / 《the minors》《米》=minor league
- 胸の,胸部の / 胸部
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/09/18 10:47:07」(JST)
[Wiki en表示]
| Pectoralis minor |
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| Pectoralis minor (shown in red). |
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| Pectoralis minor muscle (shown in red). The bone shown in blue is shoulder blade. |
| Latin |
musculus pectoralis minor |
| Gray's |
subject #122 438 |
| Origin |
third to fifth ribs, near their costal cartilages |
| Insertion |
medial border and superior surface of the coracoid process of the scapula |
| Artery |
pectoral branch of the thoracoacromial trunk |
| Nerve |
medial pectoral nerve (C8, T1) |
| Actions |
stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall |
The pectoralis minor is a thin, triangular muscle, situated at the upper part of the chest, beneath the pectoralis major in the human body.
Contents
- 1 Origin and insertion
- 2 Special notes
- 3 Relations
- 4 Actions
- 5 Variations
- 6 Additional images
- 7 References
- 8 External links
Origin and insertion[edit source | edit]
It arises from the upper margins and outer surfaces of the third, fourth, and fifth ribs, near their cartilages and from the aponeuroses covering the intercostalis.
The fibers pass superior and lateral and converge to form a flat tendon, which is inserted into the medial border and upper surface of the coracoid process of the scapula.
Special notes[edit source | edit]
Axillary nodes are classified according to their positions relative to the pectoralis major muscle. Level 1 are lateral, Level 2 are deep, Level 3 are medial. Pectoralis Minor divides the axillary artery into three parts.
Relations[edit source | edit]
The pectoralis minor muscle is covered anteriorly (superficially) by the clavipectoral fascia. The medial pectoral nerve pierces the pectoralis minor and the clavipectoral fascia. In attaching to the coracoid process, the pectoralis minor forms a 'bridge' - structures passing into the upper limb from the thorax will pass directly underneath. [1]
Actions[edit source | edit]
The pectoralis minor depresses the point of the shoulder, drawing the scapula inferior and medial, towards the thorax, and throwing its inferior angle posteriorly.
Variations[edit source | edit]
The origin is from the second, third and fourth or fifth ribs. The tendon of insertion may extend over the coracoid process to the greater tubercle. It may be split into several parts. Absence of this muscle is rare but happens with certain uncommon diseases.
Additional images[edit source | edit]
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Position of pectoralis minor muscle (shown in red).
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Anterior surface of sternum and costal cartilages
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Left scapula, costal surface
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Deep muscles of the chest and front of the arm, with the boundaries of the axilla
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The axillary artery and its branches
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The veins of the right axilla, viewed from in front
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The right brachial plexus with its short branches, viewed from in front
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Nerves of the left upper extremity
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References[edit source | edit]
- ^ http://www.teachmeanatomy.com/muscles-of-the-pectoral-region/
External links[edit source | edit]
- LUC pcmn
- UWASH pectoralisminor
- 13631566 at GPnotebook
- SUNY Figs 04:04-05
- SUNY Figs 05:02-08
- SUNY Labs 05:ov-0200
- SUNY Labs 05:01-0102
- Slide
- Muscles/PectoralisMinor at exrx.net
This article incorporates text from a public domain edition of Gray's Anatomy.
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List of muscles of thorax and back (TA A04.3–4, GA 4.397)
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| Back |
splenius (capitis, cervicis) · erector spinae (iliocostalis, longissimus, spinalis) · latissimus dorsi
transversospinales: (semispinalis dorsi, semispinalis cervicis, semispinalis capitis, multifidus, rotatores) · interspinales · intertransversarii
vertebral column: trapezius · latissimus dorsi · rhomboid (major, minor) · levator scapulae
fascia: thoracolumbar fascia
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| Thorax |
intercostales (external, internal, innermost) · subcostales · transversus thoracis · levatores costarum · serratus posterior (inferior, superior) · diaphragm
thoracic cavity: pectoralis major · pectoralis minor · subclavius · serratus anterior
fascia: pectoral fascia · clavipectoral fascia
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anat (h/n, u, t/d, a/p, l)/phys/devp/hist
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noco (m, s, c)/cong (d)/tumr, sysi/epon, injr
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UpToDate Contents
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English Journal
- Surgical Release of the Pectoralis Minor Tendon for Scapular Dyskinesia and Shoulder Pain.
- Provencher MT1, Kirby H2, McDonald LS2, Golijanin P3, Gross D4, Campbell KJ5, LeClere L6, Sanchez G7, Anthony S8, Romeo AA5.
- The American journal of sports medicine.Am J Sports Med.2016 Sep 9. pii: 0363546516664720. [Epub ahead of print]
- BACKGROUND: Pectoralis minor (PM) tightness has been linked to pain and dysfunction of the shoulder joint secondary to anterior tilt and internal rotation of the scapula, thus causing secondary impingement of the subacromial space.PURPOSE: To describe outcomes pertaining to nonoperative and operativ
- PMID 27613762
- Effect of feed consumption levels on growth performance and carcass composition during the force-feeding period in foie gras production of male Mule ducks.
- Wen ZG1, Jiang Y1, Tang J1, Xie M1, Yang PL2, Hou SS1.
- Animal : an international journal of animal bioscience.Animal.2016 Sep;10(9):1417-22. doi: 10.1017/S175173111600032X. Epub 2016 Mar 7.
- In order to avoid excess feed consumption during the force-feeding period in foie gras production, a dose-response experiment with seven feed consumption levels (450, 540, 630, 720, 810, 900, 990 g/day per bird) was conducted to evaluate the effects of feed consumption levels on growth performance a
- PMID 26948181
- Physical Therapists' Perceptions and Use of Exercise in the Management of Subacromial Shoulder Impingement Syndrome: Focus Group Study.
- Hanratty CE1, Kerr DP2, Wilson IM3, McCracken M4, Sim J5, Basford JR6, McVeigh JG7.
- Physical therapy.Phys Ther.2016 Sep;96(9):1354-63. doi: 10.2522/ptj.20150427. Epub 2016 Mar 24.
- BACKGROUND: Shoulder pain resulting from subacromial impingement syndrome (SAIS) is a common problem with a relatively poor response to treatment. There is little research exploring physical therapists' perspectives on the management of the syndrome.OBJECTIVES: The study objective was to investigate
- PMID 27013575
Japanese Journal
- Effect of the push-up exercise at different palmar width on muscle activities
- B-21 上肢挙上時の肩甲骨回旋筋モーメントアーム(人体計測,パラリンピック1)
- シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集 2014, "B-21-1"-"B-21-10", 2014-10-29
- NAID 110009948744
- 乳房切除術後も嚢胞内乳癌の形態で局所再発を繰り返す1例
Related Links
- Pectoralis minor muscle (shown in red). The bone shown in blue is shoulder blade.
- A tutorial on the attachments, actions, and nerve supply of the pectoralis minor muscle, using interactive animations and diagrams. ... :: Pectoralis Minor Muscle ::
★リンクテーブル★
[★]
- 英
- pectoralis minor muscle (KH), pectoralis minor (K)
- ラ
- musculus pectoralis minor
- 関
- 大胸筋
神経
機能
カテゴリ
上肢帯の筋＞:上肢帯の筋
[★]
- 関
- a few、minority、small number、trace、trace amount
[★]
- 関
- breast、chest、pectoral muscle、pectoralis、pectoralis muscle、thoracic
[★]
胸筋
- 関
- pectoral、pectoral muscle、pectoralis muscle