Spine
How many pairs of spinal nerves are there
31
What cranial nerves monitoring will be ideal for CPA tumor removal procedure
CN VII (facial) and VIII (auditory)
An abnormal connection between a artery and vein
AVM ( anteroialvenous malformation and Fistual
ISI stands for
Inter-stimulus interval
Which cranial nerve is most appropriate to monitor during resection of a 4cm vestibular schwannoma
CN VII (facial)
What is the lowest part of the spinal cord
conus
The origin of the P14 potential is
Medial Lemniscus
What artery is at risk during ALIFs
Femoral Artery
What is filtering
The elimination or attenuation of frequencies
What does a selective dorsal rhizotomy do
reduce spasticity
A positive Babinski reflex could indicate
Spinal cord trauma
Where 50% of the optic nerve decussation happens
Optic chiasm
The two arteries connecting during a bypass procedure for Moyamoya
STA- MCA
What is the utility of masking in BAERs
Prevent bone conduction
If a 10 mA Current runs with a Resistance of 0 ohms, what would the voltage be in mV ?
0 mV
What is Brown-Sequard Syndrome
Hemi spinal Lesion
Name the opening through which the auditory and facial nerves exit the brain
Internal Auditory Meatus
The 3 arteries supplying the spinal cord
anterior spinal artery and 2 posterior spinal arteries
Orthodromic
Conduction in the normal physiological direction
Example Sensory toward the brain
MEP toward the muscle
What is the watershed area in the circle of willis
Between the MCA and ACA
What's the name of the spinal cord midline that separates the left and right sides
Median Raphe
In BAERs, perforated or hardened tympanic membrane causes
Increase in absolute latency, normal inter-peak latencies
Used for reversal of Heparin
Protamine
The grounding of a system /machine is called
Chassis ground
What is the brain structure that contains both the ascending and descending axons from the cortex
Internal capsule