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Quiz corner was developed to keep us sharp. The correct answers are available by clicking on the answers button. To access our 6 comprehensive CHT practice exams, which are updated yearly, and provide you detailed explanations and references CLICK HERE.

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Test Your Knowledge 37 - 6/7/2010 Answers
1. The lumbrical muscle is found in which flexor zone
a. zone 1
b. zone 2
c. zone 3
d. zone 4
2. Extensor tendon injuries most commonly occur in which digit?
a. index finger
b. ring finger
c. little finger
d. long finger
3. What is the structure that surrounds the nail plate?
a. perionychium
b. eponychium
c. endonychium
d. none of the above
4. How much nail bed is required to maintain a stable nail plate?
a. none
b. 1mm
c. 3mm
d. 5mm
5. Which is not a device used to drain a subungual hematoma?
a. needle
b. paper clip
c. battery cautery
d. all of the above can be used
6. What systemic disease can cause compression of the posterior interosseous nerve?
a. RA
b. OA
c. Lupus
d. all of the above
7. What nerve is potentially affected with a hook of the hamate fx?
a. radial nerve
b. ulnar nerve
c. median nerve
d. none of the above
8. The endoneurium surrounds what structures?
a. the axons
b. schwann cells
c. myelin
d. the perineurium
9. What is the rate of axonal regeneratin in humans?
a. 5-6 mm a day
b. 3-4 mm a day
c. 1-2 mm a day
d. axons d not regenerate in humans
10. In general, how long are nerve repairs protected?
a. 1 week
b. 2 weeks
c. 3 weeks
d. no protection is needed.
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