Final answer:
When bone fragments break through the skin, it is referred to as an open or compound fracture. The correct answer is B) Compound. These types of fractures carry significant risk of infection and require specific medical treatment.
Step-by-step explanation:
When bone fragments have broken through the skin, the fracture is called an open or compound fracture. Therefore, the correct answer is B) Compound. A fracture where at least one end of the broken bone tears through the skin, which carries a high risk of infection, is known as an open or compound fracture. Types of fractures include open fracture, closed fracture, transverse fracture, spiral fracture, comminuted fracture, impacted fracture, greenstick fracture, and oblique fracture.
Each of these types describes the nature and complexity of the fracture. For instance, a closed fracture is where the bone is broken but the skin remains intact, contrary to the open fracture where the broken bone pierces the skin, potentially leading to higher infection risks and requiring different medical approaches, such as closed reduction or open reduction for treatment.