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Spinal Cord Imjury

Neuro Exam

How many segments of spinal nerves? How many per segment? 31 segments; pair of nerves per segment
Nerve tissue is protected by vertebral column and surrounded by ____________ Meninges
Spinal canal is extension of ______ ventricle and _____ 4th, CSF
How many cervical? 8
Nerves for head, neck, arm, and head muscles operated by what? Cervical
Hand and chest muscles operated by what? Thoracic
How many thoracic? 12
How many lumbar? 5
Back hips, anter/lower extremity muscles operated by what? Lumbar
How many sacral? 5
Buttocks, perineum, inner thigh, posterior leg and sole of foot operated by Sacral
How many coccygeal? 1
Lower back operated by what? Coccygeal
Separated by disc (shock absorber) Vertebra
Dorsal/posterior root responsible for sensory input
Ventral/anterior root responsible for Muscles
Site of injury and impairment usually ascends 1-2 levels due to edema
C,T,L & #: Needs ventilator C4 and above
C,T,L & #: Can wheel in regular wheelchair C7-C8
C,T,L & #: Hard to sit up by self T2-T12
C,T,L & #: Will need help with elimination Above S2-S3
C,T,L & #: Paraplegia L2-S1
Blow to spinal column, spinal cord jarred or shaken, temp loss of function for hours or days Concussion
Caused by fracture, dislocation or direct trauma to cord, bruised, resulting hemorrhage and edema of cord; degree of neuro dysfunction depends on severity of injury Contusion
Occurs as a result of squeezing or pressure on the spinal cord. Compression
Tear or cut Laceration
Bleeding within or surrounding the cord, result in compression of cord Hemorrhage
Interruption of blood flow and ischemia Infarction
Result of initial insult or trauma and usually permanent Primary injury
Progressive damage in which nerve fibers begin to swell and disintegrate resulting in ischemia, hypoxia, edema, hemorrhage. Secondary injury
Damage of spinal injury is possibly reversible if treated within ___ to _____ hours after injury (but not usually, especially if cord severed) 4 to 6
Injuries are classified according to the degree of loss of motor and sensory function _______ the level of injury Below
_________ spinal cord injury indicates complete loss of voluntary motor and sensory functions _____ the level of injury Complete; below
Paralysis of all four extremities Tetraplegia (Quadraplegia)
Injuries to thoracic or lumbar cord area results in Paraplegia
____________spinal cord injury will have preservation of sensory and motor function below the level of injury Incomplete
With ________ spinal cord injury, person may have feeling but not be able to move Incomplete
Created by: mreedy