Submitted by: Submitted by EleMice
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Pages: 4
Category: Science and Technology
Date Submitted: 03/29/2013 07:22 PM
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.
Cardiovascular, Muscular, Nervous, Integumentary and Skeletal
2. List the names of the specific structures that had to be reattached.
Brachial and axillary arteries, bicep and tricep muscles and the humorous bone also had to be reshaped and reattached (making one arm an inch shorter). Various other arties and nerves muscles ligaments and tendons
3. What organ system was most likely not reattached? Explain.
The nervous system because it would be so tedious to reattach all those little nerves and you probably couldn’t reattach them all perfectly so that the boy would be guaranteed to feel again. Also the doctors would be more concerned with giving blood flow back to the arm than feeling.
4. Why was a clean bite so important?
So it’s the tissues and bones aren’t jagged and it makes putting the pieces back on much easier.
5. Why was the bone shortened?
To make the ends smooth for attachment of a plate
6. Identify the movements associated with the arm, forearm, wrist, and fingers.
Circumduction, extension, flexion, hyperextension, proation, rotation, and supination moving fingers and picking things up.
7. Explain how the movements of the reattached arm might be altered after the reattachment.
The arm wouldn’t be able to move as good and especially not without extensive rehab. The nerves wouldn’t grow back fast so he probably wouldn’t be able to feel anything for a while. The arm would also be heavier from the metal plate.
8. Define collateral circulation and identify the regions of collateral circulation that would be found in the upper extremity.
Collateral Circulation is where snall arteriesopen connect to large arteries in different parts of the same artery.
They can be found in the axillary, subuvian and brachial...