Musculoskeletal System: Joint Injuries and Trauma
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Questions and Answers

What are the four stages of bone healing?

Hematoma formation, fibrocartilaginous callus formation, bony callus formation, remodeling

What is a compound fracture also known as?

Open fracture

What is a greenstick fracture?

A partial break in the bone

What is the most common causative microorganism for bone infections?

<p>Staphylococcus aureus</p> Signup and view all the answers

What are the three ways fractures can be classified?

<p>Location, direction of fracture line, type</p> Signup and view all the answers

What is the characteristic of a comminuted fracture?

<p>Has more than two pieces</p> Signup and view all the answers

What are the common sites for strains in the body?

<p>Lower back, cervical region of the spine, elbow, and shoulder</p> Signup and view all the answers

What is the difference in severity between strains and sprains?

<p>Sprains are more severe than strains.</p> Signup and view all the answers

What is a dislocation?

<p>Loss of articulation of the bone ends in the joint capsule caused by displacement or separation of the bone ends from their position in the joint.</p> Signup and view all the answers

What is a subluxation?

<p>A partial dislocation in which the bone ends in the joint are still in partial contact with each other.</p> Signup and view all the answers

How do soft tissue injuries differ from strains and sprains?

<p>Soft tissue injuries are relatively minor and easily treated compared to strains and sprains.</p> Signup and view all the answers

What is the primary function of fibroblasts in the healing of soft tissue?

<p>Production of collagen.</p> Signup and view all the answers

What is the hallmark feature of chronic osteomyelitis?

<p>The presence of sequestrum (piece of dead bone that separated from surrounding living bone)</p> Signup and view all the answers

What is the main cause of fractures in persons older than 45 years?

<p>Osteoporosis</p> Signup and view all the answers

Which group of individuals are at high risk of osteoporosis?

<p>Persons with hyperparathyroidism</p> Signup and view all the answers

What is the main characteristic of osteoporosis?

<p>Loss of bone mass with increased bone fragility</p> Signup and view all the answers

What is the primary cause of inadequate mineralization of bone in osteomalacia?

<p>Ca++ or phosphate deficiency</p> Signup and view all the answers

What are the two main causes of renal rickets?

<p>Insufficient Ca++ absorption and phosphate deficiency</p> Signup and view all the answers

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