Shark Attack

Shark Attack

(Summarizing and Note-taking)

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.

- Circulatory, skeletal, lymphatic, nervous, integumentary, and muscular

2. List the names of the specific structures that had to be reattached.

- Specific Bone: Humerus ; Specific Muscles: Biceps brachii, brachialis, triceps ; Specific nerves: Median nerve, ulnar nerve, radial nerve, musculocutaneous nerve, antebrachial cutaneous nerves ; Specific Blood Vessels: Brachial artery, superior and inferior collateral artery, profunda brachii artery and veins, cephalic vein, basilic vein, and other venous tributaries

3. What organ system was most likely not reattached? Explain.

- Lymphatic because the vessels are very small and hard to find.

4. Why was a clean bite so important?

- Ragged edges would make ends of blood vessels and nerves difficult to identify and put together, while clean edges would facilitate identification and reattachment.

5. Why was the bone shortened?

- To cut off the damaged area and to avoid stretching severed blood vessels and nerves.

6. Identify the movements associated with the arm, forearm, wrist, and fingers.

- Flexion, extension, abduction, adduction, grasping, and mobility of individual fingers.

7. Explain how the movements of the reattached arm might be altered after the reattachment.

- Decreased, because not all nerve fibers are reconnected or can regenerate

8. Define collateral circulation and identify the regions of collateral circulation that would be found in the upper extremity.

- Collateral circulation is defined as multiple circulation paths supplying a particular area. The regions of collateral circulation in the upper extremity are around the scapula, the head of the humerus, the elbow, wrist, and hand.

9. Identify the specific vessels that...