ECG module quiz questions Exam
Question & Answers 2025
d. Bachman's Bundle - CORRECT ANSWERS ✔✔The electrical
connection between the left atrium and the right atrium is called:
a. The superior vena cava
b. The pulmonary artery
c. The Bundle of His
d. Bachman's Bundle
e. The Crista Terminalis
a. In the atrial septum - CORRECT ANSWERS ✔✔Where in the heart
is the AV Node located?
a. In the atrial septum
b. In the right atrial appendage
c. In the right ventricle
d. In the left ventricle
e. Under the mitral valve.
a. The Coronary Sinus - CORRECT ANSWERS ✔✔Which structure is
NOT part of the cardiac conduction system?
a. The Coronary Sinus
,ECG module quiz questions Exam
Question & Answers 2025
b. The Bundle of His
c. The AV Node
d. The Bundle Branches
e. The Purkinje System
a. The cell membrane allows sodium and potassium to freely diffuse
into the cell. - CORRECT ANSWERS ✔✔Which of the following is
FALSE:
a. The cell membrane allows sodium and potassium to freely diffuse
into the cell.
b. Intercalated disks allow the transmission of an action potential from
one cell to another.
c. Energy is required to maintain a high concentration of potassium
inside the cell compared with outside the cell.
d. The resting membrane potential of a cardiac muscle cell is about -90
millivolts.
e. The cell membrane contains proteins that control the flow of ions in
and out of the cell.
c. PR Segment - CORRECT ANSWERS ✔✔The AV Nodal delay is
responsible for which part of the ECG signal:
,ECG module quiz questions Exam
Question & Answers 2025
a. T wave
b. ST Segment
c. PR Segment
d. P Wave
e. QRS Complex
b. R - CORRECT ANSWERS ✔✔The upgoing wave labeled with a red
asterisk in the diagram below would be named:
a. Q
b. R
c. T
d. S
e. R' (R-prime)
a. Potassium rushes out of the cell, restoring the resting membrane
potential. - CORRECT ANSWERS ✔✔What occurs during
repolarization of a cardiac myocyte?
a. Potassium rushes out of the cell, restoring the resting membrane
potential.
b. The cell becomes positive on the inside.
, ECG module quiz questions Exam
Question & Answers 2025
c. The cell begins to faintly glow.
d. Rapid sodium channels close, stopping the flow of sodium into the
cell.
e. Sodium rushes out of the cell, restoring the resting membrane
potential of 0mV.
b. Striations - CORRECT ANSWERS ✔✔The contractile proteins in
the heart muscle cell or myocyte that cause the cell to shorten and
allow the heart to beat can be seen under the microscope. They are
called:
a. Nucleus
b. Striations
c. Cytoplasm
d. DNA
e. Ribosomes
b. Ion - CORRECT ANSWERS ✔✔A charged atom or molecule is
known by what name?
a. Neutron
b. Ion
c. Insulator
Question & Answers 2025
d. Bachman's Bundle - CORRECT ANSWERS ✔✔The electrical
connection between the left atrium and the right atrium is called:
a. The superior vena cava
b. The pulmonary artery
c. The Bundle of His
d. Bachman's Bundle
e. The Crista Terminalis
a. In the atrial septum - CORRECT ANSWERS ✔✔Where in the heart
is the AV Node located?
a. In the atrial septum
b. In the right atrial appendage
c. In the right ventricle
d. In the left ventricle
e. Under the mitral valve.
a. The Coronary Sinus - CORRECT ANSWERS ✔✔Which structure is
NOT part of the cardiac conduction system?
a. The Coronary Sinus
,ECG module quiz questions Exam
Question & Answers 2025
b. The Bundle of His
c. The AV Node
d. The Bundle Branches
e. The Purkinje System
a. The cell membrane allows sodium and potassium to freely diffuse
into the cell. - CORRECT ANSWERS ✔✔Which of the following is
FALSE:
a. The cell membrane allows sodium and potassium to freely diffuse
into the cell.
b. Intercalated disks allow the transmission of an action potential from
one cell to another.
c. Energy is required to maintain a high concentration of potassium
inside the cell compared with outside the cell.
d. The resting membrane potential of a cardiac muscle cell is about -90
millivolts.
e. The cell membrane contains proteins that control the flow of ions in
and out of the cell.
c. PR Segment - CORRECT ANSWERS ✔✔The AV Nodal delay is
responsible for which part of the ECG signal:
,ECG module quiz questions Exam
Question & Answers 2025
a. T wave
b. ST Segment
c. PR Segment
d. P Wave
e. QRS Complex
b. R - CORRECT ANSWERS ✔✔The upgoing wave labeled with a red
asterisk in the diagram below would be named:
a. Q
b. R
c. T
d. S
e. R' (R-prime)
a. Potassium rushes out of the cell, restoring the resting membrane
potential. - CORRECT ANSWERS ✔✔What occurs during
repolarization of a cardiac myocyte?
a. Potassium rushes out of the cell, restoring the resting membrane
potential.
b. The cell becomes positive on the inside.
, ECG module quiz questions Exam
Question & Answers 2025
c. The cell begins to faintly glow.
d. Rapid sodium channels close, stopping the flow of sodium into the
cell.
e. Sodium rushes out of the cell, restoring the resting membrane
potential of 0mV.
b. Striations - CORRECT ANSWERS ✔✔The contractile proteins in
the heart muscle cell or myocyte that cause the cell to shorten and
allow the heart to beat can be seen under the microscope. They are
called:
a. Nucleus
b. Striations
c. Cytoplasm
d. DNA
e. Ribosomes
b. Ion - CORRECT ANSWERS ✔✔A charged atom or molecule is
known by what name?
a. Neutron
b. Ion
c. Insulator
