transversus abdominis muscle

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trans·ver·sus ab·dom·i·nis mus·cle

(trans-vĕr'sŭs ab-dom'i-nis mŭs'ĕl)
Origin, seventh to twelfth costal cartilages, lumbar fascia, iliac crest, and inguinal ligament; insertion, xiphoid cartilage and linea alba and, through the conjoint tendon, pubic tubercle, and pecten; action, compresses abdominal contents; nerve supply, lower thoracic.
Synonym(s): musculus transversus abdominis [TA] , transverse muscle of abdomen.
References in periodicals archive ?
It is possible to selectively block the subcostal, iliohypogastric and ilioinguinal nerves where they lie between the tranversus abdominus and internal oblique muscles, by performing a transversus abdominus plane (TAP) block (3).
It is possible that the periosteum of the crest and the adjacent muscle fascia are innervated by the nerves lying between the internal oblique and transversus abdominus muscles.
The inguinal canal is a diagonal passage in the lower anterior abdominal wall which measures approximately 4 cm in length and is made up of the aponeuroses of the external oblique, internal oblique, and transversus abdominus muscles.
I read with interest the report of Tan and Trinca regarding the belligerent transversus abdominus plane catheter (1).
To date, as far as I am aware, we have little data to guide us on the safe dose range for catheters placed in the transversus abdominus plane.
In anterior abdominal wall interstitial hernias, the sac insinuates between either the external oblique and internal oblique muscles or the internal oblique and transversus abdominus muscles.