If 
with A in QII
find 
.
Definitions:
Electrocardiograph (ECG)
A medical device used to record the electrical activity of the heart over a period of time.
Electrical Stimulation of the Brain (ESB)
A neuroscientific technique used to elicit a reaction from the brain by applying a controlled amount of electrical current to specific areas of the brain.
Meninges
The three layers of protective membranes—dura mater, arachnoid mater, and pia mater—surrounding the brain and spinal cord.
Myelin Sheaths
Fatty coverings around the axons of some neurons that speed up the transmission of nerve impulses.
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