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CAECUM

Anatomy-Abdomen

CAECUM

SITE
1. Blind ended pouch that projects down below iliocaecal junction.
2. Lies on the peritoneal floor of the right iliac fossa over the iliacus, psoas and femoral nerve.
3. Its lower end lies over the pelvic brim.
4. When distended its anterior surface can touch the parietal peritoneum of the anterior abdominal wall.

COVERING
5. Anteriorly and laterally it is covered by peritoneum.
6. The peritoneal folds may form a retrocaecal recess in which the appendix may lie.

WALL
7. The longitudinal muscle is concentrated into 3 flat bands, the taenia coli, b/w which the circular layer constitutes the wall. All 3 taenia converge at the base of the appendix.
8. Internally, the iliocaecal junction is guarded by the iliocaecal valve. It is a weak sphincter.

APPENDIX
9. The base of the appendix lies in the postero-medial wall due to the lateral wall outgrowing the medial wall.


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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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