Case: shark attack megan lantz 1. Lymphatic, muscular, cardiovascular, integumentary, and circulatory nervous systems. 2.
Humerous, all the veins and arteries running to the arm, biceps and triceps, deltoids, trapezius and pectoral muscles and all the skin connecting the shoulder to the arm. 3. The nervous system was most likely no reattached, it would have been nearly impossible to reattach all the nerves in the arm and more than likely some would have died on the way to the hospital.This is why jim will probably never regain complete use of his arm again. 4.
If the shark had ripped and shredded the muscles, veins or arteries it would have made it much more difficult to reattach the muscular and cardiovascular systems. A clean bite created clean lines and thus the surgeon could reattach more easily. 5. The joint have to be completely reconfigured, the arm would have to be cut to make it perfectly flat and smooth surface to reattach, this would cause a slight shortening of the bone. 6.Flexion: bending the elbow, clenching hand into fist.
Extension: pull forearm back down after flexing, extending fingers. Abduction: spreading fingers apart, deltoid. Adduction: dropping the arms to the sides, closing fingers. 7. Raising the arm would be more difficult because deltoid motion will probably be extremely limited seeing as how that is the main muscle affected by the arm being bitten off.
The range of motion in flexion and extension will probably also be decreased simply because of muscle cognition. 8.Collateral circulation: circulation of blood through a network of minor vessels that become enlarged and jointed with adjacent vessels when a major vein or artery is impaired. The brachial vein, cephalic vein, and basilica vein would be areas of collateral circulation that could have been affected by a shark bite. 9. The inferior ulnar collateral artery and the posterior ulnar recurrent artery provide the collateral circulation to the elbow.
10. Lifting and lowering heavy items above the head, writing with pens/pencils, managing tools, anything tediously accurate movements and control of the arm. 1. Because the nerves that were not reconnected will no longer be available for signaling. This could be caused by a lowered sense of which muscles need to be used for which activities, this would also lessen the control jim would have over his movements. 12.
In this surgery, we will be reattaching the main muscles, bones, veins, and arteries that were severed by the shark bite. We will have to reattach the humerous bone in the upper part of the arm. We will have to reattach the deltoid, and trapezius the muscles in the shoulder, as well as the triceps and biceps.We will have to reattach the brachial, basilica and cephalic veins, which are the main veins in the arm.
He should regain most use of his arm, but not all of it. There is no way to reattach all the nerves in his arm, so there may be certain sensation issues. I’m sorry we cannot regain complete use, but there should only be minimal limits to his activities. 13. No, because while you can work the muscles of the arm to control how quickly they grow, there is no way to increase the speed at which the nerves repair themselves.
4. If jim had been 80 years old, there probably would have been much more damage to the muscles and the bones, even though it was a clean bite. The muscles are weaker and therefore will take much longer to repair themselves. The blood loss also could have been more impactful because every system is basically weaker in older people to begin with. The bones would have already been weaker and probably would have broken in more places and thus required more extensive surgery.
