In this article, we will discuss about the Abdominal Internal Oblique muscle. So, let’s get started.
Abdominal Internal Oblique muscle
It originates from the thoracolumbar fascia, anterior 2/3rd of the iliac crest, and lateral half of the inguinal ligament and gets inserted into the linea alba, pectineal line of the pubis and lower ribs (8-12th). It is innervated by the thoracolumbar nerve (T7-L1) and artery supply is through the subcoastal arteries. Its chief action is the ipsilateral rotation and side-bending of the trunk, it also acts as an accessory muscle that helps in respiration (helps in reducing the volume of the chest cavity during exhalation).
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