QUIZ QUESTIONS Flashcards
(267 cards)
IN EEG BRAIN WAVES THE UNIT OF AMPLITUDE IS____
microvolts/ 10 e-10
WHAT IS MEASURED BY THE “GROUND” ELECTRODE IN AN EEG OBTAINED BY THE “BIPOLAR METHOD”
THE BODY’S BASELINE VOLTAGE
DELTA WAVES, WHICH ARE OBSERVED DURING SLEEPING, MAY INCREASE DURING ___________
DIFFICULT MENTAL ACTIVITIES
EXPLAIN WHAT WAS THE PURPOSE OF THE BIOPAC EEG EXERCISE
DEMONSTRATE BRAIN ACTIVITY DURING RELAXED (CLOSED EYES) AND ATTENTIVE (OPEN EYES) STATES
AN ________________ IS A RECORDING OF THE BRAIN’S ACTIVITY OBTAINED BY USING ELECTRODES
ELECTROENCEPHALOGRAM
BETA WAVES ARE THE PROMINENT EEG WAVE PATTERNS OF AN ADULT WHO IS _______ AND _______
ALERT AND ATTENTIVE
THETA WAVES ARE CHARACTERIZED BY FREQUENCY RHYTHMS THAT VARY BETWEEN ___ AND ____ HZ
4, 8
EXPLAIN WHAT IS MEASURED IN AN EEG OBTAINED BY THE “BIPOLAR METHOD”
The difference in electrical potential between the two areas of the brain above which the pair of electrodes is placed
DELTA WAVES ARE THE PROMINENT EEG WAVE PATTERNS OF AN ADULT WHO IS ______
sleeping
THE DIFFERENT BRAIN WAVES RECORDED IN AN EEG ARE IDENTIFIED BY THEIR ____________ AND _________
FREQUENCY; AMPLITUDE (hz / μV)
ALPHA WAVES ARE CHARACTERIZED BY FREQUENCY RHYTHMS THAT VARY BETWEEN ___ AND ____ HZ
8, 13
WHAT CHANGES WOULD YOU DETECT IN AN EEG IF ONE OF THE ELECTRODES WAS PLACED ABOVE AN AREA WITH A BRAIN TUMOR?
INCREASED SLOWING ACTIVITY (DELTA & THETA) AND DECREASED FAST ACTIVITY (ALPHA AND BETA).
THETA WAVES ARE THE PROMINENT EEG WAVE PATTERNS OF AN ADULT DURING _______
SLEEPING
IN EEG BRAIN WAVES, THE UNIT OF FREQUENCY IS __________ WHICH REPRESENTS __________
HERTZ (hz); CYCLES / SEC
BETA WAVES DETECTED IN AN EEG ARE CHARACTERIZED BY FREQUENCY RHYTHMS THAT VARY BETWEEN ___ AND ____ HZ
13; 30 (hz)
________________ IS AN EEG IN WHICH BRAIN SIGNALS ARE COLLECTED FROM THE SCALP AND ARE AMPLIFIED AND FED INTO A COMPUTER.
DIGITAL EEG
A _________________ IS TAKEN AS CLINICAL EVIDENCE OF DEATH
FLAT EEG / NO EEG signal
NAME ONE DIAGNOSTIC USE OF THE EEG
LOCALIZE BRAIN TUMORS
____________ ARE RAPID, PREDICTABLE, INVOLUNTARY MOTOR RESPONSES TO STIMULI
REFLEXES
Name one superficial cord reflex
PLANTAR REFLEX
IS THE ABNORMAL (WHEN SEEN IN ADULTS) FLARING OF TOES
AND MOVEMENT OF THE BIG TOE IN AN UPWARD DIRECTION DURING PLANTAR
REFLEX TESTING
BABINSKI SIGN
________IS A CONSENSUAL RESPONSE / REFLEX OBSERVED ON ONE SIDE
OF BODY WHEN OTHER SIDE HAS BEEN STIMULATED
contralateral response
DEFINE: CONTRALATERAL RESPONSE
reflex observed on on side of the body when other side has been stimulated
NAME ONE CONTRALATERAL RESPONSE REFLEX SEEN IN LAB
cross extension