Spinal Cord Injury Flashcards
(313 cards)
Conduit for crucial information from the brain to most of the body
Spinal Cord`
Length of SC
42-45cm long
Width of SC
10-15mm
Width of Spinal Canal
17mm
Where the SC ends in children
L3
Where the SC ends in adult
L2
How many segments SC has?
31 segments
“Horse’s Tail”
Cauda Equina
Prolongation of pia mater
Filum Terminale
Center for micturation
Conus Medullaris
Bundle of nerve roots after the inferior of SC
Cauda Equina
Connects the distal tip of SC to the distal dural sac to coccyx
Filum Terminale
Distal tip of the SC
Conus Medullaris
Three blood supply of spinal canal
Anterior Spinal Artery, Posterior Spinal Artery, Radicular artery of Adamkiewicz
What area does ASA supplies in the SC?
Anterior upper 2/3
What area does PSA supplies in the SC?
Posterior upper 1/3
What area does Adamkiewicz supplies in the SC?
Lower 2/3
Area in the SC with the least blood supply
Watershed areas
Level of watershed area in the SC
T4-T6
Drainage of SC
Internal vertebral venous plexus
Sensory Neurons
1ON, 2ON, 3ON
Motor Neurons
UMN and LMN
Axons for ascending tracts
2ON
Axons for descending tracts
UMN