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Topic: Abdominal external oblique muscle


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In the News (Wed 23 Dec 09)

  
 UAMS Department of Anatomy - Muscles of the Abdominal Region
the inguinal ligament is a specialization of the external abdominal oblique aponeurosis; the external spermatic fascia is the external abdominal oblique muscle's contribution to the coverings of the testis and spermatic cord
anterior fibers of internal abdominal oblique course up and medially, perpendicular to the fibers of external abdominal oblique; the cremaster muscle and fascia is the internal abdominal oblique muscle's contribution to the coverings of the testis and spermatic cord
is internal abdominal oblique muscle's contribution to the coverings of the spermatic cord and testis; the cremasteric reflex may be elicited by stroking the medial thigh (where the femoral branch of the genitofemoral n.
anatomy.uams.edu /anatomyhtml/muscles_abdomen.html   (1005 words)

  
 viscera.htm
of genitofemoral n.; coverings of the cord are: internal spermatic fascia (from transversalis fascia); cremasteric muscle and fascia (from internal abdominal oblique); external spermatic fascia (from external abdominal oblique aponeurosis); cord begins at deep inguinal ring; passes through inguinal canal and superficial ring to reach testis in scrotum
outermost covering of spermatic cord; derived from aponeurosis of external abdominal oblique muscle
ridge of cardiac muscle stretching from interventricular septum to anterior papillary m.
www.deardr.com /USMLE/viscera.htm   (1005 words)

  
 Abdominal Oblique Muscles
The "external abdominal oblique muscle" lies on the sides and front of the abdomen and is the largest and the most superficial of the three flat muscles in this area.
The "internal abdominal oblique muscle" is also irregularly four-sided in form and lies under the external oblique muscle.
Both of the abdominal oblique muscles work to compress abdominal contents, assist in the digestive process and in forced expiration.
www.innerbody.com /text/musc14.html   (165 words)

  
 eMedicine - Abdominal Wall Reconstruction : Article by Bradon J Wilhelmi, MD
Other abdominal wall structures located lateral to the rectus abdominus muscles are the external oblique fascia and muscle, internal oblique fascia and muscle, and transverses muscle and transversalis fascia.
Lateral traction of the external oblique, internal oblique, transversus, and rectus muscles places tension on the fascia at the linea alba and on the skin to increase risk of skin and fascial dehiscence.
The linea alba is the fusion of the anterior and posterior rectus fascia, which is located in the abdominal midline between the rectus muscles from the xiphoid to the pubis.
www.emedicine.com /plastic/topic441.htm   (165 words)

  
 Abdominal Training
Both the external and internal oblique muscles are involved in flexing the rib cage and the pelvic bones together, sideward bending (lateral flexing) of the trunk, and rotating the trunk.
The mid-section muscles consist of the rectus abdominis and the internal and external obliques.
The key abdominal muscles for low-back health may be the internal obliques, as opposed to the rectus abdominis (Plowman, 1992).
www.unm.edu /~lkravitz/Article%20folder/abdominal.html   (165 words)

  
 v81n5p1096.cfm
Controlling for spine curvature, range of motion, and posture (and, therefore, muscle length), EMG activity of the external oblique muscle and upper and lower portions of rectus abdominis muscle was measured during the isometric portion of curl-ups, abdominal muscle lifts, leg raises, and restricted or attempted leg raises and curl-ups.
A one-way repeated-measures analysis of variance was used to test for differences in activity between exercises in the external oblique and rectus abdominis muscles as well as between the portions of the rectus abdominis muscle.
The purpose of this study was to assess the activation of the upper and lower portions of the rectus abdominis muscle during a variety of abdominal muscle contractions.
www.ptjournal.org /PTJournal/May2001/v81n5p1096.cfm   (2612 words)

  
 Abdominal Oblique Muscles
The "external abdominal oblique muscle" lies on the sides and front of the abdomen and is the largest and the most superficial of the three flat muscles in this area.
The "internal abdominal oblique muscle" is also irregularly four-sided in form and lies under the external oblique muscle.
Both of the abdominal oblique muscles work to compress abdominal contents, assist in the digestive process and in forced expiration.
www.innerbody.com /text/musc14.html   (2612 words)

  
 What Are Abdominal Muscles - Obliques, Transverse Abdominal Muscle Exercises
External Obliques Abdominal Muscles- the external oblique muscles allow the trunk to twist, but to the opposite side of whichever external oblique is contracting.
The main function of the rectus abdominal muscle is to move the body between the ribcage and the pelvis.
The abdominal muscles sit on the front and sides of the lower half of the torso, originating along the rib cage and attaching along the pelvis.
www.6secondabs.net /what-are-abdominal-muscles.htm   (2612 words)

  
 Abdomen - Wikipedia, the free encyclopedia
The obliquus internus (internal oblique) muscle is triangularly shaped and is smaller and thinner than the external oblique muscle that overlies it.
The obliquus externus (external oblique) muscle is the outermost muscle covering the side of the abdomen.
The rectus abdominus is enclosed in a thick sheath formed, as described above, by fibers from each of the three muscles of the lateral abdominal wall.
en.wikipedia.org /wiki/Abdomen   (2612 words)

  
 eMedicine - Abdominal Wall Reconstruction : Article by Bradon J Wilhelmi, MD
Other abdominal wall structures located lateral to the rectus abdominus muscles are the external oblique fascia and muscle, internal oblique fascia and muscle, and transverses muscle and transversalis fascia.
Relevant Anatomy: In addition to skin and fat, the abdominal wall comprises several muscles and fascial structures that allow it to function as the protector of intra-abdominal organs and to flex and extend the trunk and support the back.
Abdominal wall infections are rare other than as a complication of a prior mesh repair of abdominal fascia.
www.emedicine.com /plastic/topic441.htm   (2612 words)

  
 Abdomen - Wikipedia, the free encyclopedia
Superficial to these, but not present in the posterior wall are the three layers of muscle, the transversus abdominus (tranvserse abdominal muscle), the internal (obliquus internus) and the external oblique (obliquus externus).
Just above the pubic spines on either side are the external abdominal rings, which are openings in the muscular wall of the abdomen through which the spermatic cord emerges in the male, and through which an inguinal hernia may rupture.
The boundary of the abdominal cavity is the abdominal wall.
en.wikipedia.org /wiki/Abdomen   (1296 words)

  
 Abdomen Terms
muscle; consists of aponeurosis of 3 muscles (external oblique, internal oblique, transversus abdominis) forming around/ surrounding the rectus abdominus muscle.
Dartos muscle fibers are a continuation of abdominal subcutaneous (below the skin) fat and, as such, are attached directly to skin.
Supplies the muscle of the perineum, external anal sphincter and ends as the dorsal nerve of the clitoris in females and penis in males.
umed.med.utah.edu /ms1/anatomy/study/ab_defined.html   (8056 words)

  
 Abdominal Muscle Training
This study found that the DSLL exercise was more effective at activating the abdominal muscles than the curl exercise, esp. the external (EO) and internal oblique (IO) muscles.
The external oblique (EO) muscle, in particular, is involved in stabilizing the pelvis during the posterior pelvic tilt due to the orientation of some of its fibers in a posterior to anterior direction.
An electromyographic comparison of abdominal muscle synergies during curl and double straight leg lowering exercises with control of the pelvic position.
www.drweitz.com /scientific/abdominal.htm   (8056 words)

  
 Abdominal muscles (cat) - Wikipedia, the free encyclopedia
There are four abdominal muscles in the cat, namely, External Oblique, Internal Oblique, Transversus abdominis, and the Rectus Abdominis.
It is the large, and the outermost abdominal muscle you will first see in dissection.
To see this muscle, first remove the extensive aponeurosis sitruated on the ventral suface of the cat.
en.wikipedia.org /wiki/Abdominal_muscles_(cat)   (8056 words)

  
 May 2003 Fit Tip Print
The four muscles we are going to look at are the Rectus Abdominus, External Oblique, Internal Oblique and Transverse Abdominus.
The first thing we need to think of when training the four abdominal muscles is to understand the mechanics of how these muscles work.
The Rectus Abdominus is responsible for flexion of the spinal column and compression of the abdominal cavity.
www.aeawave.com /trainer_tip_2003-05print.htm   (8056 words)

  
 Manual-Medicine
Advanced Routines: advanced lamina groove clearing, advanced occipital ridge routine, segmental neuropathy; treatment of intercostal muscles, rectus abdominus, pyramidalis, external/internal obliques, transversus abdominus, psoas, iliacus, general abdominal treatment, skin rolling and fascial release from the pubic bone to the acromioclavicular joint, diaphragm treatment and release
Cranium/Face/ Jaw/Scalp/Anterior Neck: corrugator, orbicularis oculi, sinus tap, treatment of sinus points, levator palprebrae superioris, levator labii superioris, eye routine; superior rectus, superior oblique, lateral rectus, inferior oblique, inferior rectus, and medial rectus; treatment of cranial aponeurosis, temporal plate, zygomatic arch, temporalis, superior sagittal sinus, auricularis anterior, superior and posterior, external t.m.j.
Arms,forearms and hands: tendon of 3 muscles on the coracoid process of the scapulae, coracobrachialis, biceps brachii, brachialis, tendons and muscles surrounding the olecranon process of the ulna, anconeus, triceps brachii, forearm muscles: extensors and flexors muscle groups, wrist/finger/hand treatment, pollicis muscles, joint range of motion for the wrist, fingers and hands
www.manual-medicine.com /syllabus.html   (478 words)

  
 muscle.htm
The spinal muscles, superficial erector spinae, are shown and the abdominal rectus abdominis and external abdominal oblique may be found.
Various muscles of the upper limb are indicated; flexor carpi ulnaris, brachialis, triceps, brachioradialis, extensor carpi ulnaris, extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus, extensor digitorum.
It is still united with the brachioradialis at the origin on humerus and the muscle mass ends in condensed tissue near proximal ends of 2nd and 3rd metacarpals Lewis W.H., (1902).
www.ana.ed.ac.uk /database/humat/notes/embryo/skeleton/muscle.htm   (1656 words)

  
 muscle.htm
The spinal muscles, superficial erector spinae, are shown and the abdominal rectus abdominis and external abdominal oblique may be found.
Various muscles of the upper limb are indicated; flexor carpi ulnaris, brachialis, triceps, brachioradialis, extensor carpi ulnaris, extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus, extensor digitorum.
It is still united with the brachioradialis at the origin on humerus and the muscle mass ends in condensed tissue near proximal ends of 2nd and 3rd metacarpals Lewis W.H., (1902).
www.ana.ed.ac.uk /database/humat/notes/embryo/skeleton/muscle.htm   (1656 words)

  
 muscle.htm
The spinal muscles, superficial erector spinae, are shown and the abdominal rectus abdominis and external abdominal oblique may be found.
Various muscles of the upper limb are indicated; flexor carpi ulnaris, brachialis, triceps, brachioradialis, extensor carpi ulnaris, extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus, extensor digitorum.
It is still united with the brachioradialis at the origin on humerus and the muscle mass ends in condensed tissue near proximal ends of 2nd and 3rd metacarpals Lewis W.H., (1902).
www.ana.ed.ac.uk /database/humat/notes/embryo/skeleton/muscle.htm   (1656 words)

  
 Cat Muscles 01c
This image shows a ventral view of the abdominal wall of a cat, with the external oblique muscle reflected laterally.
The fibers of this muscle extend ventrally and attach to the linea alba by an aponeurosis.
NOTE: These pages are best viewed at a screen size of 800 X 600 pixels.
bioweb.uwlax.edu /aplab/Table_of_Contents/Lab_09/Cat_Muscles_01c/cat_muscles_01c.html   (1656 words)

  
 Posterior Abdominal Wall - Muscles
Moving superficially to deep, they are the External Oblique, Internal Oblique and Transverse Abdominus muscles.
Muscles in the abdomen can be divided into three broad categories: anterior and lateral wall muscles, posterior abdominal wall muscles, and back muscles.
Second is the Psoas Major muscle that runs longitudinally from the transverse processes of the upper lumbar vertebrae to the lesser trochanter of the femur bone.
sprojects.mmi.mcgill.ca /postabdwall/Muscles.htm   (1656 words)

  
 Back muscles
The external oblique is a large, thin sheet of overlapping muscle that runs along the side of the torso and partly on the front from the lower ribs to the rectus, the pubis bone, and the iliac crest of the hip.
When you sneeze, the shoulder, back and abdominal muscles contract quickly to force air out of the nasal passages, while the rhombodeus major and minor muscles hold your head and neck steady.
The sternocleidomastoid muscle is located in the neck.
www.american.edu /adonahue/m5back.htm   (1656 words)

  
 Abdominal external oblique muscle - Wikipedia, the free encyclopedia
The Obliquus externus abdominis (External or descending oblique muscle), situated on the lateral and anterior parts of the abdomen, is the largest and the most superficial of the three flat muscles in this region.
Muscles of the Head-- Neck-- Trunk-- Upper limb -- Lower limb -- LIST OF ALL MUSCLES
Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
en.wikipedia.org /wiki/Obliquus_externus_abdominis_muscle   (290 words)

  
 Review Questions, Anterior Abdominal Wall
The external oblique muscle contributes the cremaster muscle
The cremaster muscle is innervated by the genital branch of the genitofemoral nerve
The rectus abdominis muscles are antagonists of the erector spinae muscles
anatomy.uams.edu /anatomyhtml/antabdominalwallq.html   (461 words)

  
 Aponeurosis - Wikipedia, the free encyclopedia
It has for its borders the external oblique, pectoralis muscles, and the latissimus dorsi.
The Ventral Abdominal Aponeuroses are located just on top of the rectus abdominis muscle.
The Dorsal Lumbar Aponeuroses are situated just on top of the epaxial muscles of the thorax, which are multifidus spinae and Sacrospinalis.
en.wikipedia.org /wiki/Aponeurosis   (198 words)

  
 Review Questions, Anterior Abdominal Wall
The external oblique muscle contributes the cremaster muscle
The cremaster muscle is innervated by the genital branch of the genitofemoral nerve
The rectus abdominis muscles are antagonists of the erector spinae muscles
anatomy.uams.edu /anatomyhtml/antabdominalwallq.html   (461 words)

  
 Medical Article, Breast Reconstruction, Breast Augmentation, Reconstructive Surgery
The vertically orientated muscle fibers of both the internal and external oblique muscles assist in flexing the trunk, synergistic with the rectus muscles.
As the rectus muscle is the only one of the flexor group that has been surgically damaged, we may presume that the decreased abdominal wall strength is caused by resection of a part of the rectus muscle.
If the rectus muscles were not active and the trunk could not be stabilized, no sit-up or curl-up could be performed because the iliopsoas muscles would only be tilting the pelvis and lower lumbar spine, leaving the upper body immobile.
www.diepflap.com /article-0035.html   (5082 words)

  
 eMedicine - Tissue Transfer, Rectus Abdominis : Article by Catherine P Winslow, MD
The rectus sheath, formed by fascial extensions of the internal and external oblique muscles and transversus abdominis muscle, encases the rectus muscle.
Relevant Anatomy: The rectus abdominis muscles are paired, vertically oriented muscles that are components of the abdominal wall.
The lateral boundary of the rectus sheath is known as the linea semilunaris, and, medially, the linea alba separates the 2 rectus muscles.
www.emedicine.com /ent/topic664.htm   (3071 words)

  
 BioMed Central Full text Surgical physiology of inguinal hernia repair - a study of 200 cases
Aponeurosis of the external oblique muscle gives generalized shielding protection in front of the inguinal canal without disturbing the exit of the spermatic cord at the level of the superficial inguinal ring.
The medial leaf of the external oblique aponeurosis is sutured with the inguinal ligament from the pubic tubercle to the abdominal ring using 1/0 monofilament polyamide (Ethilon) or polypropylene (Prolene) interrupted sutures.
A strip of the external oblique aponeurosis gives replacement to the absent aponeurotic extensions in the posterior wall, making it strong, and the additional strength of the external oblique muscle to the weakened internal oblique and the transversus abdominis muscle keeps it physiologically dynamic.
www.biomedcentral.com /mkt/2353/1471-2482/3/2   (3071 words)

  
 CHAPTER 25: ABDOMINAL WALLS
Anteriorly, the abdominal wall includes the rectus abdominis muscles, and the aponeuroses of the three muscles (the external and internal oblique and the transversus) that form much of the side of the abdomen.
The anterior sheath is comprised of the aponeurosis of the external oblique and an anterior layer of the aponeurosis of internal oblique; the posterior sheath of the posterior layer of the internal oblique and the aponeurosis of the transversus abdominis muscle.
The external and internal oblique muscles and the transversus abdominis muscle are lateral (table 25-1).
www.dartmouth.edu /~humananatomy/part_5/chapter_25.html   (3408 words)

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