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THE BRAIN FEUD. The neurotransmitter crosses a gap to bind to another neuron, this process is known as:. SYNAPSE. While the action potential is occurring, the neuron cannot respond to another stimulus no matter how great, what is this period called?. ABSOLUTE REFRACTORY PERIOD.
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The neurotransmitter crosses a gap to bind to another neuron, this process is known as: SYNAPSE
While the action potential is occurring, the neuron cannot respond to another stimulus no matter how great, what is this period called? ABSOLUTEREFRACTORYPERIOD
This is a spider-web like membrane that follows the contour of dura. It does not tuck into each crevice, but rides over the ridges. What is it called? ARACHNOID
This lobe is involved in movement, orientation, recognition and perception of sensory stimulation. What is it called? PARIETAL LOBE
Indentations or crevices on the surface of the cerebrum are called: SULCI
This separates the frontal and parietal lobes from the temporal lobe: SYLVIAN FISSURE or LATERAL SULCUS
The line of demarcation between the frontal and parietal lobes is called: ROLANDIC FISSURE or CENTRAL SULCUS
This divides the two hemispheres along the midline: THE MEDIAL LONGITUDINAL FISSURE
Deep within the Medial Longitudinal Fissure (MLF) is a ridge of white nerve fibers that connect the two hemispheres. What is it called? CORPUS CALLOSUM
This area of the brain acts like a Traffic Cop for sensory and motor signals: THALAMUS
What is the name of the test that determines hemisphere dominance? WADA TEST
Name the three parts of the brainstem: MIDBRAIN PONS MEDULLA OBLONGATA
The waxing and waning of alpha and slow rolling eye movements are indicative of? DROWSINESS
What is one of the main indicators of Stage II Sleep? SLEEP SPINDLES
During REM, which sleep stage should the background activity most resemble? STAGE 1
The number of times a wave occurs in one second determines its: FREQUENCY
The faster the frequency the _________ the duration: SHORTER
4 – 7 Hertz = ? THETA
How is amplitude measured? PEAK TO PEAK; IN MILLIMETERS (mm)
When waveforms have an abrupt onset and cessation it is considered: PAROXYSMAL
Transient, Monomorphic, Complex and Polymorphic are all descriptors for: MORPHOLOGY
What is the term used when 2 channels sharing a common electrode deflect in opposite directions at the same time? PHASE REVERSAL
This normal variant of delta intermixed with alpha is seen in children and young adults with posterior predominance, it attenuates with eye opening and disappears in sleep: POSTERIOR SLOW WAVES OF YOUTH
This normal variant can be blocked by an actual or imagined contralateral limb movement: MU RHYTHM
Seen in the awake state with eyes open and scanning the room or reading: LAMBDA
10 x 0.37 is the formula for: TIME CONSTANT
“CMRR” stands for: COMMON MODE REJECTION RATIO
Sensitivity is measured in: MICROVOLTS PER MILLIMETER (uV/mm)
Voltage is measured in: MICROVOLTS (uV)
Amplitude is measured in? MILLIMETERS (mm)
What is another name for High Frequency Filter? LOW PASS FILTER
This is seen primarily in the central head region and is bilaterally symmetrical, it first appears in Stage II sleep and consists of a sharp, slow wave usually associated with sleep spindles: K-COMPLEX
Less than 2 Hertz delta occupying 20–50% of the page with amplitude of >75uV represents what Sleep Stage? STAGE III
Less than 2 Hertz delta occupying 50% of the page with an amplitude of >75uV represents what Sleep Stage? STAGE IV
What does ‘RMTD” stand for? RHYTHMIC MIDTEMPORAL THETA OF DROWSINESS (rarely seen, normal variant)
This is a rare, normal variant that comes in bursts of 4-7 Hz, usually <1 sec posterior maximal, seen in young adults in drowsiness and disappear in sleep. Small spikes <50 uV followed by a low voltage slow wave: 6 HERTZ SPIKE AND WAVE
What does “BETS” stand for? BENIGN EPILEPTIFORM TRANSIENTS OF SLEEP
These slow, transients are first seen in drowsiness and have sharp surface elements, they are focal at CZ: VERTEX WAVES
11 – 15 Hz, 0.5-3 seconds in duration, usually between 2-100 uV, first seen in Stage II Sleep, spindle like bursts that crescendo: SLEEP SPINDLES
Brief episodes of impaired awareness, usually staring: TYPICAL ABSENCE SEIZURES
Sudden loss of muscle tone in a limb or over the entire body: ATONIC
Sudden shock-like jolt to one or more muscle which increases muscle tone and causes movement: MYOCLONIC
These begin with simultaneous loss of consciousness and stiffening of the body, followed by rhythmic jerks: TONIC CLONIC SEIZURES
These seizures cause a change in the muscle activity and may involve jerking or stiffening of a part of the body: FOCAL MOTOR
These seizures may cause abnormal function in any of the five senses: SENSORY SEIZURES