DrVirgo
Forum Hero
Topics: 1096
Posts: 3,515
|
28. A 21-year-old man develops wristdrop after sustaining a complete fracture of the upper arm associated with extensive tissue damage. The fracture was reduced successfully, and the ends of vessels and damaged nerves were apposed and surgically rejoined. Despite physical therapy, the extensor muscles have a decreased volume and can contract only weakly. Would healing and flexion are good. The most likely cause of this condition is abnormal function of which of the following?
A) Circulation
B) Glucose transporters
C) Lymphatic drainage
D) Neurotrophic input
E) Tendon stretch receptors
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| endocrine
Forum Senior
Topics: 7
Posts: 55
|
a guess wld be e
|
| cyra
Moderator
Topics: 29
Posts: 844
|
I'd say D.The radial nerve has been damaged.When peripheral nerves are repaired it is a repair done at the level of the connective tissue to coapt a proximal healthy nerve to a distal healthy nerve stump.This then provides the appropriate anatomical enviornment so that axons from the proximal stump can regenerate into the endoneural tubes within the distal nerve stump and therefore lead to end organ function restoration.This obviously didn't happen in this case as the extensors are weak...and so there is loss of the neurotrphic effect.
|
| mazinger
Forum Guru
Topics: 46
Posts: 918
|
totally agree with cyra
___________________
original mazinger z
|
| endocrine
Forum Senior
Topics: 7
Posts: 55
|
thanks cyra .tat makes sense
|
| robin082006
Forum Hero
Topics: 471
Posts: 5,125
|
I go with D too
___________________
The Key to Succeed is Patience.
|
| vanshita
Forum Guru
Topics: 25
Posts: 839
|
d
|
|
| |
| | | | | | | |
