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ANTERIOR ABDOMINAL WALL-NERVES & ARTERIES

Anatomy-Abdomen

ANTERIOR ABDOMINAL WALL-NERVES & ARTERIES

1. INTERCOSTAL NERVES (T7-T11) - posterior intercostal nerves run from intercostal spaces => b/w INTERNAL OBLIQUE + TRANSVERSUS ABDOMINIS => enter the RECTUS SHEATH => pierces RECTUS ABDOMINIS from behind (supplying it) => pass through anterior layer of sheath => becoming anterior cutaneous nerves.

2. SUPERIOR EPIGASTRIC ARTERY - terminal branch of the internal thoracic enters sheath through anterior diaphragm => supplies RECTUS ABDOMINIS => anastamoses with inferior epigastric artery.

3. INFERIOR EPIGASTRIC ARTERY - branch of the external iliac artery => enters the rectus sheath over the arcuate line => anastamoses with the superior epigastric artery.

4. DEEP CIRCUMFLEX ILIAC ARTERY - arises from the external iliac artery => runs laterally to the ASIS => continues along the iliac crest => pierces the TRANSVERSUS ABDOMINIS to reach neurovascular plane => to anastamose with iliolumbar + superior gluteal arteries.


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REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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