Spinal cord injury Flashcards
which SCI has NO SACRAL SPARING ? incomplete or complete
complete
T OR F: the lower the injury the more mobility
true
would a person with a L- level injury be able to use assistive devices to walk?
YESS
what is Wallerian Degeneration?
nerve fiber is crushed or cut
axon separates from cell body and degenerates distal to the injury
define autonomic dysreflexia (AKA HYPERREFLEXIA)
a reaction of the ANS to overstimulation
results in sweating & headaches
what is areflexia (hyporeflexia)
below normal or absent reflexes
define spinal shock
initially an absence of all reflex activity
initial time lasts 24-hrs by a gradual return of reflexes 1-3 days after injury
what is brown-sequard syndrome
result from penetrating injury (gunshot) only half of spinal cord is damaged IPSILATERAL loss of motor function contralateral loss of pain& temp prognosis is good
what is posterior cord syndrome
RARE.
from a tumor or infarction of the posterior spinal artery
what is anterior spinal artery syndrome
caused by flexion/compression injuries
damage usually in 2/3 of the cord
why can most neurons not regenerate after injury
clean up is slow
glial cells inhibit regeneration
how fast do nerves regenerate
speed is about 1 mm per day
is the axon is damaged can neurons regenerate?
yes
PNS CAN REGENERATE
because the cleanup is faster due to macrophages
C1-C3 results in limited movement of what?
limited head&neck movement and only with paralysis below that region, may have difficulty talking
C3-C4 injury=
have head & neck movement, typically able to speak and can breath without ventilator
C5 injury=
head,neck& shoulder control, bend elbows, rotate hands,self care is manageable, driving can happen, w/c can be pushed
C6 injury=
same as C5 plus light housekeeping
C7 injury=
same as C6 but manage more easily
C8-T1 injury=
movement with head,neck,shoulders,arms and fingers, able to live more independently
T2-6 injury=
normal function in upper body, some degree of impairment in legs
T7-T12 injury=
similar to function to T2-6 but more control
L level injury=
some abilities to move hips and knees, walking can be possible with devices
