trabecula

(noun)

a small mineralized spicule that forms a network in spongy bone

Related Terms

Examples of trabecula in the following topics:

  • Embryonic and Fetal Bone Formation

    • The first step in the process is the formation of bone spicules (aggregates of bony matrix) that eventually fuse with each other and become trabeculae.
    • The periosteum is formed and bone growth continues at the surface of trabeculae.
    • Much like spicules, the increasing growth of trabeculae result in interconnection, and this network is called woven bone.
    • As growth continues, trabeculae become interconnected and woven bone is formed.

  • Bone

    • Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates .
    • Trabeculae in spongy bone are arranged such that one side of the bone bears tension and the other withstands compression.

  • Stages of Bone Development

  • Exercise and Bone Tissue

    • The internal architecture of the trabeculae undergoes adaptive changes, followed by secondary changes to the external cortical portion of the bone, perhaps becoming thicker as a result.

  • Development of the Skeleton

    • Osteoblasts, differentiated from the osteoprogenitor cells that entered the cavity via the periosteal bud, use the calcified matrix as a scaffold and begin to secrete osteoid, which forms the bone trabecula.

  • Connective Tissues: Bone, Adipose, and Blood

    • Spongy bone is made of tiny plates called trabeculae, which serve as struts, giving the spongy bone strength.
    • Spongy bone, inside the compact bone, is porous with web-like trabeculae.

  • Growth of Bone

    • Arteries from the metaphysis branch through the newly-formed trabeculae in this zone.

  • Meninges

    • In the region of the brain, particularly, a large number of fine filaments called arachnoid trabeculae pass from the arachnoid through the subarachnoid space to blend with the tissue of the pia mater.

  • Body Cavity Membranes

    • In the region of the brain, particularly, a large number of fine filaments called arachnoid trabeculae pass from the arachnoid through the subarachnoid space to blend with the tissue of the pia mater.