Medical Definition of External oblique
1.
Origin, fifth to twelfth ribs; insertion, anterior half of lateral lip of iliac crest, inguinal ligament, and anterior layer of the rectus sheath; action, diminishes capacity of abdomen, draws thorax downward; nerve supply, thoracoabdominal nerves.
Synonym: musculus obliquus externus abdominis, abdominal external oblique muscle.
(05 Mar 2000)
Lexicographical Neighbors of External Oblique
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