sethigulshan
Forum Senior
Topics: 27
Posts: 146
|
How to distinguish these two?
|
| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,819
|
basically UMN's are diviuded into flexor and extensor biased UMN's
- corticospinal tracts and rubrospinal tracts (upper limbs) are flexor biased
- reticulospinal and vstibuloapinal tracts are extensor biased
Threfore lesions involving UMN tracts above the midbrain result in decorticate rigidty [extension of lower limbs and flexion of upper limbs {as rubrospinal tract remains intact} ]
while lesions involving UMN below the midbrain results in decerebreate rigidity with extensions of both the limbs due to unopposed extensor biased upper motor neurons!
___________________
life is guud
|
| sethigulshan
Forum Senior
Topics: 27
Posts: 146
|
Cool!!
|
| kingsofke
Forum Guru
Topics: 24
Posts: 715
|
ssrpk you are too good 
___________________
In Life there are neither rewards nor punishments, just consequences.
|
|
| |
| | | | |
