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332:. When the diaphragm contracts, it pulls the lower wall of the chest cavity down, increasing the volume of the lungs which then fill with air. Conversely, when the internal obliques contract they compress the organs of the abdomen, pushing them up into the diaphragm which intrudes back into the chest cavity reducing the volume of the air-filled lungs, producing an exhalation.
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of the opposite side to achieve this torsional movement of the trunk. For example, the right internal oblique and the left external oblique contract as the torso flexes and rotates to bring the left shoulder towards the right hip. For this reason, the internal obliques are referred to as "same-side
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277:. The muscle fibers run from these points superomedially (up and towards midline) to the muscle's insertions on the inferior borders of the 10th through 12th ribs and the
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at Human
Anatomy Online, SUNY Downstate Medical Center - "Incision and reflection of the internal abdominal oblique muscle."
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Diagram of a transverse section of the posterior abdominal wall, to show the disposition of the lumbodorsal fascia.
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Diagram of a transverse section through the anterior abdomina wall, below the linea semicircularis.
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Secondly, its contraction causes ipsilateral rotation and side-bending. It acts with the
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Internal abdominal oblique muscle.Anterior abdominal wall.Deep dissection.Anterior view
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Bilateral: Compresses abdomen
Unilateral: Ipsilateral trunk rotation
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The internal oblique performs two major functions. Firstly as an
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Femoral sheath laid open to show its three compartments.
273:(upper part of hip bone) and the lateral half of the
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447:Moore, Keith L; & Dalley Arthur R (2006).
296:The internal oblique is supplied by the lower
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320:, it acts as an antagonist (opponent) to the
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451:(5th ed.). Lippincott Williams and Wilkins.
269:of the lower back, the anterior 2/3 of the
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510:
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288:is also attached to the internal oblique.
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324:, helping to reduce the volume of the
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44:The abdominal internal oblique muscle.
29:
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484:at the SUNY Downstate Medical Center
261:Its fibers run perpendicular to the
166:musculus obliquus internus abdominis
715:Crura of superficial inguinal ring
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227:abdominal internal oblique muscle
33:Abdominal internal oblique muscle
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398:
386:
374:
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318:accessory muscle of respiration
1:
369:Diagram of sheath of Rectus.
27:Muscle in the abdominal wall
449:Clinically Oriented Anatomy
251:transverse abdominal muscle
1014:
608:Abdominal internal oblique
559:Abdominal external oblique
426:
209:Anatomical terms of muscle
18:Abdominal internal oblique
705:Superficial inguinal ring
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207:
49:
37:
476:Anatomy figure: 35:07-05
337:external oblique muscle
263:external oblique muscle
247:external oblique muscle
231:internal oblique muscle
97:pectineal line of pubis
946:Puboprostatic ligament
662:Interfoveolar ligament
598:Tendinous intersection
429:anatomical terminology
993:Spine lateral flexors
902:Rectoprostatic fascia
302:iliohypogastric nerve
56:Muscles of the trunk.
983:Muscles of the torso
941:Pubovesical ligament
564:Transverse abdominal
267:thoracolumbar fascia
245:that lies below the
126:Thoracoabdominal nn.
897:Rectovaginal fascia
633:Panniculus adiposus
265:, beginning in the
249:and just above the
813:Iliopectineal arch
770:Quadratus lumborum
737:Reflected ligament
727:Pectineal ligament
710:Intercrural fibers
700:Deep inguinal ring
482:Anatomy image:7526
436:Abdominal exercise
427:This article uses
306:ilioinguinal nerve
298:intercostal nerves
134:iliohypogastric n.
114:Subcostal arteries
81:lumbodorsal fascia
970:
969:
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958:Anococcygeal body
924:Piriformis fascia
825:
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821:
820:
751:
750:
747:
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722:Inguinal ligament
690:Inguinal triangle
674:Linea semilunaris
657:Transverse fascia
521:and ligaments of
344:Additional images
300:, as well as the
275:inguinal ligament
223:
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103:) and ribs 10-12.
73:Inguinal ligament
16:(Redirected from
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914:Obturator fascia
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732:Lacunar ligament
650:Fascia of Scarpa
645:Membranous layer
638:Fascia of Camper
628:Abdominal fascia
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581:Rectus abdominis
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286:cremaster muscle
239:abdominal muscle
235:interior oblique
215:edit on Wikidata
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569:Conjoint tendon
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138:ilioinguinal n.
101:conjoint tendon
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695:Inguinal canal
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988:Spine flexors
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576:Rectus sheath
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861:Puborectalis
808:Iliac fascia
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591:Arcuate line
448:
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326:chest cavity
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292:Nerve supply
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178:A04.5.01.017
165:
130:subcostal n.
846:Levator ani
785:Psoas minor
780:Psoas major
586:Pyramidalis
340:rotators."
271:iliac crest
155:Identifiers
77:iliac crest
977:Categories
669:Linea alba
442:References
330:exhalation
279:linea alba
128:(T7-T11),
93:Linea alba
893:Visceral
868:Coccygeus
775:Iliopsoas
756:Posterior
603:Cremaster
543:Anterior/
465:, unm.edu
463:Abdominal
322:diaphragm
257:Structure
136:(L1) and
88:Insertion
909:Parietal
683:Inguinal
423:See also
312:Function
304:and the
237:, is an
79:and the
790:Iliacus
545:lateral
523:abdomen
519:Muscles
328:during
241:in the
229:, also
146:Actions
132:(T12),
62:Details
882:Fascia
839:Muscle
831:Pelvis
801:Fascia
763:Muscle
617:Fascia
552:Muscle
527:pelvis
455:
109:Artery
68:Origin
931:Floor
213:[
202:13891
161:Latin
121:Nerve
99:(via
525:and
453:ISBN
225:The
190:2373
173:TA98
140:(L1)
233:or
197:FMA
185:TA2
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253:.
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511:e
504:t
497:v
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217:]
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
