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  2. Abdominal internal oblique muscle - Wikipedia

    en.wikipedia.org/wiki/Abdominal_internal_oblique...

    It acts with the external oblique muscle 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 ...

  3. Abdominal external oblique muscle - Wikipedia

    en.wikipedia.org/wiki/Abdominal_external_oblique...

    The external oblique functions to pull the chest downwards and compress the abdominal cavity, which increases the intra-abdominal pressure as in a Valsalva maneuver.It also performs ipsilateral (same side) side-bending and contralateral (opposite side) rotation: the right external oblique would side-bend to the right and rotate to the left, and vice versa.

  4. Aponeurosis of the abdominal external oblique muscle

    en.wikipedia.org/wiki/Aponeurosis_of_the...

    The aponeurosis of the abdominal external oblique muscle is a thin but strong membranous structure, the fibers of which are directed downward and medially.. It is joined with that of the opposite muscle along the middle line, and covers the whole of the front of the abdomen; above, it is covered by and gives origin to the lower fibers of the pectoralis major; below, its fibers are closely ...

  5. Abdominal muscles - Wikipedia

    en.wikipedia.org/wiki/Abdominal_muscles

    The external oblique, closest to the surface, extend inferiorly and medially, in the direction of sliding one’s four fingers into pants pockets. Perpendicular to it is the intermediate internal oblique, extending superiorly and medially, the direction the thumbs usually go when the other fingers are in the pants pocket. The deep muscle, the ...

  6. List of skeletal muscles of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_skeletal_muscles...

    Oblique Superior and inferior 2 1 rectus, inferior: head, eye, orbit (left/right) annulus of Zinn at orbital apex 6.5 mm inferior to corneal limbus: ophthalmic artery: oculomotor nerve [CNIII], inferior branch: adducts and depresses eye: Oblique Superior and inferior 2 1 rectus, medial: head, eye, orbit (left/right) annulus of Zinn at orbital apex

  7. Transverse abdominal muscle - Wikipedia

    en.wikipedia.org/wiki/Transverse_abdominal_muscle

    Throughout the rest of its extent the aponeurosis passes horizontally to the middle line, and is inserted into the linea alba; its upper three-fourths lie behind the rectus muscle and blend with the posterior lamella of the aponeurosis of the internal oblique; its lower fourth is in front of the rectus abdominis.

  8. Rectus abdominis muscle - Wikipedia

    en.wikipedia.org/wiki/Rectus_abdominis_muscle

    Anatomy figure: 35:06-07 at Human Anatomy Online, SUNY Downstate Medical Center – "Incision and reflection of the external abdominal oblique muscle." Anatomy figure: 35:07-01 at Human Anatomy Online, SUNY Downstate Medical Center – "Incision and reflection of the internal abdominal oblique muscle."

  9. Muscles of respiration - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_respiration

    When forceful exhalation is required, or when the elasticity of the lungs is reduced (as in emphysema), active exhalation can be achieved by contraction of the abdominal wall muscles (rectus abdominis, transverse abdominis, external oblique muscle and internal oblique muscle). These press the abdominal organs cranially (upward) into the ...