4. A 12-year-old boy is brought to the emergency department 3 hours after falling feet from and injuring x-ray of the right upper extremity shows a fracture in the middle of the ulna. Which of the following histologic features is most likely to be predominant in the fracture site? OA) Bone formation OB) Collagen production C) Hematoma D) Inflammatory cells

12) which bones of the body develop by intramembranous ossification? a) clavicle b) none of these c) humerus d) femur

Physicians classify fractures using specially developed classification systems based on the type of fracture. Two such systems are incorporated into ICD-10. What are these? How does a coder refer to documentation to determine how the fracture is classified?

A. if someone (in the anatomical position) is hit in the knee by the front bumper of car coming from the left side of the person, which structure in the knee joint is the most likely to be torn? why? B. Sometimes in order to stimulate healing of the articular cartilage in the knee joint, a surgeon may have to induce bleeding by drilling a hole through the articular cartilage into the underlying bone. Explain why induced bleeding tends to help the healing process of the articular cartilage.