WorksheetsBMI
Total questions: 25
Worksheet time: 12mins
Source of Bioelectric potential is ____________ in nature
electronic
electric
ionic
mechanical
The principal ion that is not involved with the phenomena of producing cell potentials is ______________
sodium
potassium
chlorine
hydrogen
What is the relatively static membrane potential of quiescent cells called?
half-cell potential
action potential
resting membrane potential
cell potential
The variation of the electrical potential associated with the passage of a pulse along the membrane of a muscle cell or a nerve cell is called __________
muscle potential
action potential
resting potential
half cell potential
After a cell is stimulated, a finite period of time is required for the cell to return to its pre-stimulus state. This period is known as ____________
restoration period
refractory period
regain period
regenerative period
Electrooculography (EOG/E.O.G.) is a technique for measuring what?
abnormal function of the retina
heart rate
respiration rate
cornea-retinal standing potential
Phonocardiography is listening to __________
arm muscle sound
lungs sound
heart sound
respiratory tract sound
Recording electrical activities associated with heart is known as ____________
EEG
EOG
EMG
ECG
Which of the following is considered to be the primary pacemaker of the heart?
sino-atrial node
atrio-ventricular node
purkinje fibres
bundle of his
Atrio ventricular node is located at __________
upper part of the heart wall between the two atrial
lower part of the heart wall above the two atrial
lower part of the heart wall between the two atrial
upper part of the heart wall above the two atrial
Before placing the electrodes the skin should be __________
wet
dry
hairy
oily
Electrodes make a transfer from the __________ in the tissue to the electronic conduction which is necessary to make measurements.
electronic conduction
ionic conduction
electric conduction
impulsive conduction
Electrode paste ____________
increases contact impedance
equates contact impedance
reduces contact impedance
absorbs contact impedance
What is the frequency range of ECG?
70-120 Hz
0.05-120 Hz
5-120 Hz
12-120 Hz
What is the signal amplitude of EEG?
2-200 µV
2-200mV
2-2000 µV
2-2000mV
Needle electrode is used to measure ____________
ECG
EMG
EEG
EOG
Off-set potential is _____________
difference in half-cell potentials between two electrodes
sum of half-cell potentials between two electrodes
average of half-cell potentials between two electrodes
complement of half-cell potentials between two electrodes
Which of the following is not preferred for electrode making?
Ag-AgCl
Copper
Stainless-steel
Gold
Which of the following statement is false about polarizable electrodes?
they are made using stainless steel
used for recording resting ECG
retain a residual charge when exposed to large pulse of energy
can transmit small bioelectric signals even after getting exposed to large pulse of energy
Which electrodes can work even after being induced to large electric discharge such as defibrillation?
polarizing electrodes
magnetic electrodes
non-polarizing electrodes
electrolytic electrodes
Electrodes to measure EEG are placed on ________
forehead
scalp
cheek
ears
According to the international 10/20 system to measure EEG, even number denotes which side of the brain?
left
top
bottom
right
Letter F in the EEG electrode placement system denotes?
front
face
frontal lobe
fast
Normal EEG frequency range is _______
50-500Hz
0.5-50HZ
0.05-5Hz
1-200Hz
The letter T in the EEG electrode placement system denotes?
temporal lope
temper lobe
trace
timpanic
