Heart and Collateral Circulation
Shark Attack
(Summarizing and Note-taking)
Read the story on this website: http://www.sciencecases.org/shark/shark.asp
Answer the following questions:
1. Identify at least five organ systems in this region of the arm that the surgeon would have marked for reattachment.
2. List the names of the specific structures that had to be reattached.
3. What organ system was most likely not reattached? Explain.
4. Why was a clean bite so important?
5. Why was the bone shortened?
6. Identify the movements associated with the arm, forearm, wrist, and fingers.
7. Explain how the movements of the reattached arm might be altered after the reattachment.
8. Define collateral circulation and identify the regions of collateral circulation that would be found in the upper extremity.
9. Identify the specific vessels that provide the collateral circulation to the elbow.
10. Identify specific types of activities that might cause Jim problems after recovery.
11. Why would full use of his arm be unlikely?
12. Assume the role of the surgeons as they explain the procedure to Jim’s parents. Write a one- to two-paragraph explanation about the surgery, paying particular attention to what you would say about regaining use of his arm, forearm, and hand.
13. Assume the surgery to reconnect blood vessels was successful and blood flow was re-established immediately throughout the arm. Would the nerves of the arm recover as quickly and completely as the muscles? Explain why or why not.
14. How might this situation have been different if Jim had been 80 instead of 8 years old?
Source: National Center for Teaching Case Studies in Science
(Summarizing and Note-taking)
Read the story on this website: http://www.sciencecases.org/shark/shark.asp
Answer the following questions:
1. Identify at least five organ systems in this region of the arm that the surgeon would have marked for reattachment.
2. List the names of the specific structures that had to be reattached.
3. What organ system was most likely not reattached? Explain.
4. Why was a clean bite so important?
5. Why was the bone shortened?
6. Identify the movements associated with the arm, forearm, wrist, and fingers.
7. Explain how the movements of the reattached arm might be altered after the reattachment.
8. Define collateral circulation and identify the regions of collateral circulation that would be found in the upper extremity.
9. Identify the specific vessels that provide the collateral circulation to the elbow.
10. Identify specific types of activities that might cause Jim problems after recovery.
11. Why would full use of his arm be unlikely?
12. Assume the role of the surgeons as they explain the procedure to Jim’s parents. Write a one- to two-paragraph explanation about the surgery, paying particular attention to what you would say about regaining use of his arm, forearm, and hand.
13. Assume the surgery to reconnect blood vessels was successful and blood flow was re-established immediately throughout the arm. Would the nerves of the arm recover as quickly and completely as the muscles? Explain why or why not.
14. How might this situation have been different if Jim had been 80 instead of 8 years old?
Source: National Center for Teaching Case Studies in Science