THE BRAIN FEUD - PowerPoint PPT Presentation

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  2. The neurotransmitter crosses a gap to bind to another neuron, this process is known as: SYNAPSE

  3. While the action potential is occurring, the neuron cannot respond to another stimulus no matter how great, what is this period called? ABSOLUTEREFRACTORYPERIOD

  4. 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

  5. This lobe is involved in movement, orientation, recognition and perception of sensory stimulation. What is it called? PARIETAL LOBE

  6. Indentations or crevices on the surface of the cerebrum are called: SULCI

  7. This separates the frontal and parietal lobes from the temporal lobe: SYLVIAN FISSURE or LATERAL SULCUS

  8. The line of demarcation between the frontal and parietal lobes is called: ROLANDIC FISSURE or CENTRAL SULCUS

  9. This divides the two hemispheres along the midline: THE MEDIAL LONGITUDINAL FISSURE

  10. 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

  11. This area of the brain acts like a Traffic Cop for sensory and motor signals: THALAMUS

  12. What is the name of the test that determines hemisphere dominance? WADA TEST

  13. Name the three parts of the brainstem: MIDBRAIN PONS MEDULLA OBLONGATA

  14. The waxing and waning of alpha and slow rolling eye movements are indicative of? DROWSINESS

  15. What is one of the main indicators of Stage II Sleep? SLEEP SPINDLES

  16. During REM, which sleep stage should the background activity most resemble? STAGE 1

  17. The number of times a wave occurs in one second determines its: FREQUENCY

  18. The faster the frequency the _________ the duration: SHORTER

  19. 4 – 7 Hertz = ? THETA

  20. How is amplitude measured? PEAK TO PEAK; IN MILLIMETERS (mm)

  21. The strength of a signal is called? VOLTAGE

  22. When waveforms have an abrupt onset and cessation it is considered: PAROXYSMAL

  23. Transient, Monomorphic, Complex and Polymorphic are all descriptors for: MORPHOLOGY

  24. What is the term used when 2 channels sharing a common electrode deflect in opposite directions at the same time? PHASE REVERSAL

  25. 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

  26. This normal variant can be blocked by an actual or imagined contralateral limb movement: MU RHYTHM

  27. Seen in the awake state with eyes open and scanning the room or reading: LAMBDA

  28. 10 x 0.37 is the formula for: TIME CONSTANT


  30. Sensitivity is measured in: MICROVOLTS PER MILLIMETER (uV/mm)

  31. Voltage is measured in: MICROVOLTS (uV)

  32. Amplitude is measured in? MILLIMETERS (mm)

  33. In EEG, one second equals how many milliseconds? 1,000 msec

  34. What is another name for High Frequency Filter? LOW PASS FILTER

  35. 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

  36. Less than 2 Hertz delta occupying 20–50% of the page with amplitude of >75uV represents what Sleep Stage? STAGE III

  37. Less than 2 Hertz delta occupying 50% of the page with an amplitude of >75uV represents what Sleep Stage? STAGE IV

  38. This is seen 70 – 90 minutes after sleep onset: REM

  39. What does ‘RMTD” stand for? RHYTHMIC MIDTEMPORAL THETA OF DROWSINESS (rarely seen, normal variant)

  40. 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


  42. These slow, transients are first seen in drowsiness and have sharp surface elements, they are focal at CZ: VERTEX WAVES

  43. 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

  44. Seizure Type

  45. Brief episodes of impaired awareness, usually staring: TYPICAL ABSENCE SEIZURES

  46. Sudden loss of muscle tone in a limb or over the entire body: ATONIC

  47. Sudden shock-like jolt to one or more muscle which increases muscle tone and causes movement: MYOCLONIC

  48. These begin with simultaneous loss of consciousness and stiffening of the body, followed by rhythmic jerks: TONIC CLONIC SEIZURES

  49. These seizures cause a change in the muscle activity and may involve jerking or stiffening of a part of the body: FOCAL MOTOR

  50. These seizures may cause abnormal function in any of the five senses: SENSORY SEIZURES