肋間筋
WordNet
- make ones way by force; "He muscled his way into the office"
- animal tissue consisting predominantly of contractile cells (同)muscular_tissue
- one of the contractile organs of the body (同)musculus
- authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"
- located or occurring between the ribs; "intercostal muscles"
- muscles between the ribs; they contract during inspiration (同)intercostal_muscle, musculus_intercostalis
PrepTutorEJDIC
- 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
- (胸部の)肋間(ろっかん)の
- 筋肉の,筋力のある / 力ずくの
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/01/15 14:45:44」(JST)
[Wiki en表示]
| Intercostal muscle |
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| Deep muscles of the chest and front of the arm, with the boundaries of the axilla |
| Latin |
Musculi intercostales |
| Gray's |
subject #117 403 |
| Origin |
ribs 1-11 |
| Insertion |
ribs 2-12 |
| Artery |
intercostal arteries |
| Nerve |
intercostal nerves |
| Actions |
Elevation or Depression of the Ribs |
| MeSH |
Intercostal+Muscles |
Intercostal muscles are several groups of muscles that run between the ribs, and help form and move the chest wall. The intercostal muscles are mainly involved in the mechanical aspect of breathing. These muscles help expand and shrink the size of the chest cavity when you breathe.
There are three principal layers;
- external intercostal muscles aid in quiet and forced inhalation. They originate on ribs 1-11 and have their insertion on ribs 2-12. The external intercostals are responsible for the elevation of the ribs, and expanding the transverse dimensions of the thoracic cavity.
- internal intercostal muscles aid in forced expiration (quiet expiration is a passive process). They originate on ribs 2-12 and have their insertions on ribs 1-11. The internal intercostals are responsible for the depression of the ribs decreasing the transverse dimensions of the thoracic cavity.
- innermost intercostal muscle, the deep layers of the internal intercostal muscles which are separated from them by a neurovascular bundle. This in turn is composed of:
- transversus thoracis muscle
- intercostal space
- subcostalis muscle
Both the external and internal muscles are innervated by the intercostal nerves (the ventral rami of thoracic spinal nerves), are supplied by the intercostal arteries, and are drained by the intercostal veins. Their fibers run in opposite directions.
The scaleni, which also move the chest wall and have a function in inhalation, are also intercostal muscles, just not one of the three principle layers.
See also
- Thoracic diaphragm, another muscle importantly involved in breathing action.
- Exhalation
External links
- -294977459 at GPnotebook
- SUNY Figs 18:03-03
- UCC
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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
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- Semaya AE, El-Nakeeb R, Hasan M, Shams A.
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- Muscle oxygenation maintained during repeated-sprints despite inspiratory muscle loading.
- Rodriguez RF, Townsend NE, Aughey RJ, Billaut F.
- PloS one. 2019 ;14(9)e0222487.
- A high work of breathing can compromise limb oxygen delivery during sustained high-intensity exercise. However, it is unclear if the same is true for intermittent sprint exercise. This project examined the effect of adding an inspiratory load on locomotor muscle tissue reoxygenation during repeated-
- PMID 31536522
Japanese Journal
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Related Links
- Full Intercostal Muscles Description [Continued from above] . . . Each rib is connected to the rib below it by both an external and internal intercostal muscle. The twelfth rib is the exception as it is the inferior-most rib. The external ...
- :any of the short muscles that extend between the ribs filling in most of the intervals between them and serving to move the ribs in respiration: a: any of 11 ... Seen and Heard What made you want to look up intercostal muscle?
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