PATHOLOGY

PATHOLOGY MCQ

HEALING AND REPAIR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What causes most broken bones?
A
Too little blood flow to the bone.
B
Too much stress placed on a bone.
C
A muscle or tendon detaching from a bone.
D
A lack of marrow inside a bone.
Explanation: 

Detailed explanation-1: -Stress fractures are tiny cracks in a bone. They’re caused by repetitive force, often from overuse-such as repeatedly jumping up and down or running long distances. Stress fractures can also develop from normal use of a bone that’s weakened by a condition such as osteoporosis.

Detailed explanation-2: -The most common causes of fractures are: Trauma. A fall, motor vehicle accident, or tackle during a football game can all result in fractures. Osteoporosis.

Detailed explanation-3: -A break of any size is called a fracture. If the broken bone punctures the skin, it is called an open fracture (compound fracture). A stress fracture is a break in the bone that develops because of repeated or prolonged forces against the bone. The repeated stress weakens the bone until it finally breaks.

Detailed explanation-4: -A stress fracture is a small crack in a bone, or severe bruising within a bone. Most stress fractures are caused by overuse and repetitive activity; they are common in runners and athletes who participate in running-intensive sports, such as soccer and basketball.

Detailed explanation-5: -The vast majority of stress fractures affect the lower extremities (femur, tibia, fibula and feet), but any bone can sustain one, says Dr. Jokl. He has treated rowers with stress fractures in their ribs, from pulling the oars through water rapidly.

There is 1 question to complete.