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(tră-bĕk′ū-lă) (-lē) plural.trabeculae [L., a little beam]
1. A cord of tissue that serves as a supporting structure by forming a septum that extends into an organ from its wall or capsule.
2. The network of osseous tissue that makes up the cancellous structure of a bone.

trabecula carneae

Any of the thick muscular tissue bands attached to the inner walls of the ventricles of the heart.
Medical Dictionary, © 2009 Farlex and Partners


  1. a pair of cartilage bars in the vertebrate embryo which form the front part of the floor of the cranium.
  2. the bony columns in long bones which may become ossified and solidified but which in birds remain intact to provide a light skeleton for flight.
  3. the rod-shaped supporting structures of various plant organs.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005