Mrs. Debbie Morgan is a 45-year-old female who works as astocking clerk for a local home improvement store. While she was atwork today a large box of metal rivets fell from a 20-ft.-highoverhead shelf, striking her outstretched arm and knocking her tothe ground. The ambulance personnel reported that she had lostquite a bit of blood at the accident scene and was “knocked outâ€when they arrived. To minimize further hemorrhage, the paramedicsapplied a pressure bandage to her arm.
You meet the paramedics as they bring Mrs. Morgan into theemergency room and begin to assess her for injuries. She is awakeand alert, but complaining of severe left arm and back pain, plusshe has a “killer headache.†To fully examine her injuries youremove four blood-soaked bandages from her arm. You notice a largeopen wound on her arm with what appears to be bone tissue stickingout of the skin. She also has bruises covering her left shoulder,left wrist, and lower back. To determine the extent of her injuriesMrs. Morgan undergoes several x-rays, which reveal thefollowing:
- One way bones are classified is by their shape. How would youclassify the bones fractured by Mrs. Morgan (3points)?
- The body of Mrs. Morgan’s vertebra is fractured. What type ofbone tissue makes up the majority of the vertebral body (1point)? Describe the structure and function of this typeof bone (2 points).
- The diaphysis of Mrs. Morgan’s humerus is fractured. What typeof bone tissue makes up the majority of the diaphysis of long boneslike the humerus (1 point)? List anddescribe/define the layers (lamellae) of bone tissue found here(3 points)