Shark Attack case analysis

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1. The organ systems in the boy’s arm that the surgeon would’ve had to reattach are the circulatory, lymphatic, integumentary, muscular, skeletal and the nervous systems.

2. The specific structures that would’ve been reattached would be the humerus bone. Additionally, the muscles that would’ve been reattached are biceps brachii, brachialis, triceps, and the coracobrachialis. The nerves that would’ve been fixed would be the median, ulnar, radial, musculocutaneous, and the antibrachial cultaneous nerves. The brachial, superior and inferior collateral, profunda brachii arteries would have to be reattached, along with several smaller veins.

3. The system that was most likely not reattached would be the lymphatic. The lymphatic system is composed of small vessels that would be very difficult to reattach.

4. A clean shark bite is so important because it would tear less tissue, making it easier to reattach. Less damage would be done to the nerves and muscles in the arm, and after reattachment, use of the arm would be better.

5. It is shorted a little in order to clean up the bone, remove the damaged bone and even it out to make reattachment easier.

6. The movements associated in the arm, forearm, wrist, and fingers are flexion, extension, abduction, rotation, and adduction.

7. After reattachment, movement would be diminished because not all of the nerve fibers would necessarily be reattached.

8. Collateral circulation is the circulation of blood through modified vessels to certain areas. The areas of collateral circulation in the arm are the scapula, the upper head of the humerus, the elbow, wrist, and the hand.

9. The axillary artery, the brachial artery, and the subuvian artery are responsible for the collateral circulation in the upper extremity.

10. Jim could have trouble with clenching his hand into a fist and moving his individual fingers, because not all of the nerves and muscles were attached exactly as they were before.

11. Jim would not be able to regain full use of his arm because after the nerve fibers were severed, they wouldn’t regenerate properly and after that they wouldn’t work as well.

12. The nerves wouldn’t recover nearly as quickly or as completely as the muscle in the arm. The nerves will attempt to regenerate, but if they fail to reconnect, then the nerves won’t fully heal. The muscles would heal much more quickly, especially with physical therapy.

13. If Jim Morris had been 80, the chance of full recovery in the arm would have been significantly depleted. The nerves and muscles wouldn’t recover as quickly. Additionally, a person of 80 years is more likely to have other health issues, and therefore could complicate the surgery. Because Jim was only 8, his body was healthy and would probably be able to heal much more quickly than someone of a much older age.

Resources:

  • Grabianowski, Ed. “How Shark Attacks Work. ” HowStuffWorks. Discovery, n. d. Web. 12 Jan. 2014. Gray, Henry. “VI. The Arteries.
  • The Arteries of the Upper Extremity. A. The Subclavian Artery. Gray, Henry. 1918. Anatomy of the Human Body. ” VI. The Arteries.
  • The Arteries of the Upper Extremity. A. The Subclavian Artery. Gray, Henry. 1918. Anatomy of the Human Body. Bartleby, n. d. Web. 12 Jan. 2014.
  • Mackinnon, Susan E. , MD. “Nerve Injury and Recovery. ” (n. d. ): n. pag. Web. 12 Jan. 2014.
  • Markus, Susan. “What Are Five Organ Systems in the Region of Your Arm? ” Questions & Answers. ChaCha, n. d. Web. 12 Jan. 2014. ” Replantation. ” Replantation. American Society for Surgert of the Hand, n. d. Web. 12 Jan. 2014.

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