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nbme4/bl2/28 - basicq
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03-12-2010, 05:55 AM
wats neurotrophic input means??does it mean nerve supply?? or if muscle volume is decresed it will be due to nerve damage
why answer is a? muscle will have good collaterals right?/ plz explain
03-12-2010, 06:26 AM
d is correct answer...
imagine a patient with stroke and hemiparesis... his muscles undergoes atrophy in despite of preserved and good blood circulation in muscles in his paretic side... WHY? Muscle weakness and atrophy are inevitable consequences of α-MN lesions as well. Because muscle size and strength are related to the extent of their use, denervated muscles are prone to atrophy. A secondary cause of muscle atrophy is that denervated muscles are no longer supplied with trophic factors from the α-MNs that innervate them. http://en.wikipedia.org/wiki/Alpha_motor_neuron
03-12-2010, 08:13 AM
to goforward
hi, pl r u there i want some explanation for this, section......... pl let me know if u there thanks
03-12-2010, 08:13 AM
to goforward
hi, pl r u there i want some explanation for this, section......... pl let me know if u there thanks |
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