transversus abdominis muscle
Musculus transversus abdominis
In 1 atlas
Definition
The lateral abdominal wall muscle that is deep to the internal oblique.
Source: UBERON · Licence: CC-BY-3.0
Definition from the Uberon multi-species anatomy ontology (Mungall CJ et al., Genome Biology 2012, 13:R5), https://obophenotype.github.io/uberon/, licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/).
Relations
- Origin
- costal cartilage, iliac crest, inguinal ligament, thoracolumbar fascia
- Insertion
- linea alba, pubis, pubic symphysis
- Action
- raising intra-abdominal pressure, exhalation
- Innervation
- Anterior ramus of first lumbar nerve, seventh intercostal nerve, eighth intercostal nerve, ninth intercostal nerve, tenth intercostal nerve, eleventh intercostal nerve, subcostal nerve, perineal branch of pudendal nerve, Anterior ramus of third sacral nerve, Anterior ramus of fourth sacral nerve, iliohypogastric nerve, ilio-inguinal nerve
- Arterial supply
- subcostal artery
Parts in this atlas
Neighbouring structures
Practice questions
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Identifiers
- TA2
- 2375
- TA98
- A04.5.01.019
- FMA
- 15570
- UBERON
- 0001221
- Wikidata
- Q1427665
