Trabeculae carneae

Definition

noun

Muscular ridges that crisscross and project from the inner walls of the heart ventricles.


Supplement

Their structure is important to their role. Had the inner surface of heart ventricles been flat, suction could occur and this would impair the heart's ability to pump efficiently.


Word origin: Latin trabeculae (beam) + carneae (flesh)

Synonyms:

Compare: papillary muscle
See also: ventricle, Reils band

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