Deck 1: Bioelectric Potential and Electrodes

Question 1

Source of Bioelectric potential is in nature.

A)electronic
B)electric
C)ionic
D)mechanical

Answer 1

ionic

Question 2

Palsied muscles mean                            

A)paralyzed muscles
B)active muscles
C)voluntary muscles
D)involuntary muscles

Answer 2

paralyzed muscles

Question 3

The principal ion that is not involved with the phenomena of producing cell potentials is

A)sodium
B)potassium
C)chlorine
D)hydrogen

Answer 3

hydrogen

Question 4

What is the relatively static membrane potential of quiescent cells called?

A)half-cell potential
B)action potential
C)resting membrane potential
D)cell potential

Question 5

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                      

A)muscle potential
B)action potential
C)resting potential
D)half cell potential

Question 6

Cells depolarize and action potential in generated as soon as a stimulus is applied.

Question 7

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

A)restoration period
B)refactory period
C)regain period
D)regenerative period

Question 8

Electrooculography (EOG/E.O.G.) is a technique for measuring what?

A)abnormal function of the retina
B)heart rate
C)respiration rate
D)cornea-retinal standing potential

Question 9

EKG stands for                                    

A)Electrocardiography
B)Electroencephalography
C)Electromyography
D)Electrtokinetcography

Question 10

Phonocardiography is listening to                      

A)arm muscle sound
B)lungs sound
C)heart sound
D)respiratory tract sound

Question 11

Which type of electrodes are employed to study the electrical activities of individual cells?

A)milli-electrodes
B)micro-electrodes
C)surface-electrodes
D)pre-jelled electrodes

Question 12

Glass micro-capillaries are a type of micro electrode.

Question 13

Glass microcapillaries are preferred over metallic electrodes because of the former                

A)polarizes with input current
B)does not have sustainable current carrying capacity
C)has less contact surface area
D)has sustainable current carrying capacity

Question 14

Do metallic micro electrodes exist.

Question 15

Metallic micro electrodes have impedance compared to conventional electrodes?

A)equal
B)smaller
C)high
D)very high

Question 16

Which of the following electrode is manufactured by circumferential application of heat to a small area of glass tubing and pulling the glass when it gets soft?

A)macro metallic electrodes
B)micro metallic electrodes
C)micro pipette
D)surface electrodes

Question 17

Which of the following metal is preferred for manufacturing micro electrodes?

A)Stainless steel
B)Tungsten
C)Iron
D)Copper

Question 18

are devices which convert one form of energy into another.

A)transducers
B)electrodes
C)impulses
D)opamp

Question 19

Electrodes make a transfer from the in the tissue to the electronic conduction which is necessary to make measurements.

A)electronic conduction
B)ionic conduction
C)electric conduction
D)impulsive conduction

Question 20

Surface electrodes damage the living tissues.

Question 21

Deep-seated electrodes indicates the electric potential difference arising the living tissues or cells.

A)inside
B)outside
C)around
D)adjacent

Question 22

Impedance pneumography is a commonly-used technique to monitor a person's                

A)respiration rate
B)heart rate
C)pulse rate
D)skin impedance

Question 23

Electrode paste                          

A)increases contact impedance
B)equates contact impedance
C)reduces contact impedance
D)absorbs contact impedance

Question 24

All electrode potentials are measured with respect to which reference electrode?

A)hydrogen electrode
B)platinum electrode
C)calomel electrode
D)hydrogen absorbed on platinum electrode

Question 25

What is the frequency range of ECG?

A)70-120 Hz
B)0.05-120 Hz
C)5-120 Hz
D)12-120 Hz