Motor 3: Complete transection of spinal Cord Flashcards
Transection at upper cervical Level leads to
Sudden death
transection at lower Cervical Level leads to
Quadriplegia & Diaphragmatic Respiration only
Transection at lower thoracic level leads to
Paraplegia
Enumerate events that occur under level of complete transection lesion
- Hyperpolarization
- Loss of all reflexes
- Vasodilation
- Bed sores
Describe visceral reflex Under level of lesion
No visceral Reflex, therefore there is retention of urine with overflow
Describe effect on Vascular system under level of lesion
Loss of Vasoconstrictor tone that helps in maintaining blood pressure, so blood pressure decreases
The higher the level of transection, the** lower the BP gets**
Common site of Beds sores
- Back
- Heels
- gluteal region
Cause of bed sores
Neglegance of mobilization and cleanliness
The extremity of the shock stage of transection of spinal cord depends on
Degree of encephalisation (dependency on cortex)
Importance of Proper care during Shock stage
It reduces Mortality rate from 80% to 6%
Describe nenervation hypersensitivity in stage of recovery
There is an Increase in the Number of Receptors, therefore mediators left in the spinal cord act on it
Explain sprouting that occurs in Recovery phase
Collaterals of existing neurons form additional endings on interneurones and motor neurons
Explain why there is gradual rise in ABP during early recovery
Regaining of activity of Vasomotor center in lateral horn cells
Explain why, during early recovery, there is sudden drop in BP when patient stands up
Due to absence of Vasomotor control from the medulla
during early recovery, planter reflex shows
Positive babinski sign (fanning)
