callus

(noun)

the material of repair in fractures of bone which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece

Related Terms

Examples of callus in the following topics:

  • Bone Remodeling and Repair

    • The repair tissue between the broken bone ends, the fibrocartilaginous callus, is composed of both hyaline and fibrocartilage .
    • Bony callous formation: The fibrocartilaginous callus is converted into a bony callus of spongy bone.
    • Bone remodeling: The bony callus is then remodelled by osteoclasts and osteoblasts, with excess material on the exterior of the bone and within the medullary cavity being removed.

  • Bone Repair

    • These processes culminate in a new mass of heterogeneous tissue which is known as the fracture callus.
    • Eventually, all of the woven bone and cartilage of the original fracture callus is replaced by trabecular bone, restoring most of the bone's original strength.
    • Eventually, the fracture callus is remodeled into a new shape which closely duplicates the bone's original shape and strength.
    • This figure depicts a communitive midshaft humeral fracture with callus formation.

  • Capacity of Different Tissues for Repair

    • Eventually, all of the woven bone and cartilage of the original fracture callus is replaced by trabecular bone, restoring most of the bone's original strength.
    • Eventually, the fracture callus is remodeled into a new shape that closely duplicates the bone's original shape and strength.

  • Metatarsal Fracture

    • But in civilian life, it is seldom diagnosed correctly for a week or two, when, because of lack of immobilization, there is an excessive deposit of callus (which may be palpable) around the fracture.

  • Natural and Artificial Methods of Asexual Reproduction in Plants

    • The plant part often gives rise to an undifferentiated mass, known as a callus, from which, after a period of time, individual plantlets begin to grow.

  • α-Amino Acids

    • In the form of skin, hair, callus, cartilage, muscles, tendons and ligaments, proteins hold together, protect, and provide structure to the body of a multi-celled organism.