external intercostal muscle

n.

Any of the muscles with their origin from the lower border of a rib, with insertion into the upper border of the rib below, with nerve supply from the intercostal nerve, and that contract during inspiration and maintain tension in the intercostal spaces to resist mediolateral movement.

Words nearby external intercostal muscle

external genitalia, external hemorrhoid, external hemorrhoids, external iliac artery, external iliac vein, external intercostal muscle, external jugular vein, external nasal vein, external obturator muscle, external occipital crest, external ophthalmopathy