Johnny Fractured the Lower Third of His Right Tibia in a Skiing

question 71

Essay

Johnny fractured the lower third of his right tibia in a skiing accident. The soft tissues in the area were severely damaged and their surgical removal was necessary. After prolonged immobilization, it was found that Johnny was healing very poorly. The explanation offered by the orthopedic surgeon was that vascularization of the fracture site was still inadequate and good healing was absolutely dependent upon an adequate blood supply. Describe how a long bone receives its blood supply and trace the path of nutrient delivery to the osteocytes.

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Definitions:

Volatile Storage

A type of computer memory that requires power to maintain the stored information; it loses its contents when the power is turned off.

Cache Memory

Cache memory is a type of small, high-speed memory in a computer that stores frequently accessed data or instructions for quicker retrieval.

Clock Speed

The speed at which a microprocessor executes instructions, measured in hertz (Hz), affecting the performance of a computer or device.

Access Time

The time needed to access information from a memory or storage device.