ECG Chapter 2
Settings
- 1.The valves between the atria and the ventricles are semilumar
- 2.The atria always pump the blood
- 3.The heart is a two-sided pump that produces pulmonary circulation and systemic circulation
- 4.The coronary arteries carry deoxygenated blood
- 5.The pulmonary artery carries oxygenated blood
- 6.The waves on the ECG vaveform are positive when they are up and negative when they are down
- 7.If you are a man, you will have a faster hearbeat
- 8.
- 9.The right ventricle is sometimes known as the workhorse of the heart
- 10.The waves of the ECG waveform are P, Q, R, S, T, and sometimes a U
- 11.What vessel are you in?
- 12.After you enter the right atrium, you have to go through a door in order to enter the right ventricle. What is the name of this door?
- 13.You have made it to the lungs successfully and are traveling back to the heart. What vessels are you in?
- 14.When you get to the heart, where will you be?
- 15.you have finally made it to the last chamber of the heart. The left ventricle pumps you into the entire body. After entering the aorta, what are the very first vessels you will travel into?
- 16.The process of transporting blood to and from the body tissues is known as circulation
- A.
True
- B.
False
- 17.Each electrical activity of the heart is recorded on the ECG strip
- A.
True
- B.
False
- 18.What is the middle layer of the heart or th musular layer?
- A.
Endocardium
- B.
Myocardium
- C.
Epicardium
- D.
Pericardium
- 19.inner layer of the heart that lines the chamber and valves, The Purkinje are located here
- A.
Endocardium
- B.
Myocardium
- C.
Epicardium
- D.
Pericardium
- 20.Outside, thin layer of the heart that contains the coronary arteries; also the inner layer of the pericardium
- A.
Endocardium
- B.
Myocardium
- C.
Epicardium
- D.
Pericardium
- 21.A double-layer sac that encloses the heart. The inner layer, or visceral pericardium, is also called the epicardium; the outer is the parietal pericardium
- A.
Pericardium
- B.
Epicardium
- C.
Myocardium
- D.
Endocardium
- 22.between left ventricle and aorta
- A.
Aortic semilunar
- B.
Pulmonary smilunar
- C.
Tricuspid atrioventricular
- D.
Mitral (bicuspid) atrioventricular
- 23.Between right ventricle and pulmonary artery
- A.
Pulmonary smilunar
- B.
Tricuspid atrioventricular
- C.
Mitral (bicuspid) atrioventricular
- D.
Aortic semilunar
- 24.separates right atrium and right ventricle
- A.
Pulmonary smilunar
- B.
Tricuspid atrioventricular
- C.
Aortic semilunar
- D.
Mitral (bicuspid) atrioventricular
- 25.separates left atrium and left ventricl
- A.
Mitral (bicuspid) atrioventricular
- B.
Aortic semilunar
- C.
Tricuspid atrioventricular
- D.
Pulmonary smilunar
- 26.The major blood vessels that transport blood to and from the heart are the vena cava, pulmonary artery, pulmonary veins, and the aorta
- A.
True
- B.
False
- 27.What are the first vessels to branch off the aorta known as?
- A.
Pulmonary arteries
- B.
Interventricular arteries
- C.
Coronary arteries
- 28.initiates heart at a rate of 60-100 beats per minute with electrical impulse that cause depolarization
- A.
Sinoatrial (SA) node (pacemaker)
- B.
Atrioventricular (AV) node
- C.
Bundle of His (AV bundle)
- D.
Bundle branches
- 29.delays the electrical impulse to allow for the atria to complete their contraction and ventricles to fill before the next contraction
- A.
Bundle branches
- B.
Bundle of His (AV bundle)
- C.
Atrioventricular (AV) node
- D.
Sinoatrial (SA) node (pacemaker)
- 30.conducts electrical impulses from the atria to the ventricles
- A.
Bundle branches
- B.
Atrioventricular (AV) node
- C.
Bundle of His (AV bundle)
- D.
Sinoatrial (SA) node (pacemaker)
- 31.conducts impulses down both sides of the interventricular septum
- A.
Sinoatrial (SA) node (pacemaker)
- B.
Bundle of His (AV bundle)
- C.
Bundle branches
- D.
Atrioventricular (AV) node
- 32.Distributes the electrical impulses through the right and left ventricles
- A.
Bundle of His (AV bundle)
- B.
Atrioventricular (AV) node
- C.
Purkinje fibers (network)
- D.
Sinoatrial (SA) node (pacemaker)
- 33.The ability of the heart muscle cell to repond to a stimulus or impulse is call
- A.
Automaticity
- B.
Exitability
- C.
Conductivity
- D.
Contractility
- 34.this ability of the heart muscle cells to shorten in response to an electrical stimulus is call
- A.
Contractility
- B.
Conductivity
- C.
Exitability
- D.
Automaticity
- 35.the ability of the heart cells to receive and transmit an electrical impulses
- A.
Conductivity
- B.
Automaticity
- C.
Exitability
- D.
Contractility
- 36.the ability of the heart to initiate an electrical impulse without being stimulated by another or independent source.
- A.
Conductivity
- B.
Exitability
- C.
Automaticity
- D.
Contractility
- 37.Which electrical event is represented by the cardiac contraction of the heart?
- A.
Polarization
- B.
Depolarization
- C.
Repolarization
- 38.Which electrical stimulation is shown by the return to the resting phase of the heart?
- A.
Polarization
- B.
Repolarization
- C.
Depolarization
- 39.Which electrical event is represented by th first state of cellular in the heart?
- A.
Depolarization
- B.
Repolarization
- C.
Polarization
- 40.artery that transports blood to the entire body
- A.
Aorta
- B.
Right atrium
- C.
Right ventricle
- 41.type of valve located in the aorta and the pulmonary artery
- A.
Aorta
- B.
Mitral valve
- C.
Semilunar valve
- 42.atrioventricular valve between the left atrium and left ventricle
- A.
Semilunar valve
- B.
Mitral valve
- C.
Aorta
- 43.heart chamber that pumps blood to the body, known as the workhorse of the heart
- A.
Right ventricle
- B.
Right atrium
- C.
Left ventricle
- 44.heart chamber that receives blood from the lungs
- A.
Left atrium
- B.
Left ventricle
- C.
Right atrium
- 45.chamber of the heart that receives blood from the body
- A.
Left atrium
- B.
Left ventricle
- C.
Right atrium
- 46.chamber of the heart that pumps blood to the lungs
- A.
Right ventricle
- B.
Left ventricle
- C.
Right atrium
- 47.blood vessel that transports blood from the lungs to the left atrium
- A.
Pulmonary vein
- B.
Right pulmonary artery
- C.
Left pulmonary arteries
- 48.valve located between the right atrium and right ventricle
- A.
Mitral valve
- B.
Tricuspid valve
- C.
Semilunar valve
- 49.blood vessel that provides a pathway for deoxygenated blood to return to the lungs
- A.
Pulmonary vein
- B.
Left ventricle
- C.
Pulmonary artery
- 50.delays the electrical conduction through the heart
- A.
AV node
- B.
SA node
- C.
Purkinje fibers
- 51.ability of the heart to initiate an electrical impulse 电脉冲启动
- A.
Excitability
- B.
Automaticity
- C.
Conductivity
- 52.branches off the bundle of His that conduct impulses to the left and right ventricles
- A.
Bundle branches
- B.
Purkinje fibers
- C.
Repolarization
- 53.ability of the heart cells to receive and transmit an electrical impulse
- A.
Excitability
- B.
Automaticity
- C.
Conductivity
- 54.an electrical current that initiates the contraction of the heart muscle
- A.
Depolarization
- B.
Repolarization
- C.
Polarization
- 55.ability of the heart muscle cells to shorten in response to an electrical stimulus
- A.
Conductivity 电导率
- B.
Automaticity
- C.
Contractility 收缩
- 56.heart muscle cells return to their resting electrical state and the heart muscle relaxes
- A.
Repolarization
- B.
Depolarization
- C.
Polarization
- 57.启动 initiates the heartbeat
- A.
SA node
- B.
AV node
- C.
Excitability
- 58.分配 distribute electrical impulses from cell to cell throughout the ventricles
- A.
Excitability
- B.
Depolarization
- C.
Purkinje fibers
- 59.The PR interval is usually
- A.
0.06 to 0.10 second
- B.
0.12 to 0.20 second
- C.
Greater than 0.20 second
- D.
Less than 0.06 second
- 60.What part of the ECG tracing represents the repolarization of the bunddle of His and Purkinje fibers?
- A.
T wave
- B.
PR interval
- C.
U wave
- D.
P wave
- 61.What part of the ECG tracing repressents the time it takes for the impulse to activate the myocardium to the complete contraction?
- A.
WRS complex
- B.
J point
- C.
QT interval
- D.
PR interval
- 62.What part of the ECG tracing is measured from the end of the S wave to the beginning of the T wave and is normally on the isoelectrial line?
- A.
ST segment
- B.
QT segnent
- C.
U wave
- D.
QRS complex
- 63.What wave on the ECG tracing is not always seen and sonetimes when seen can indicate an electrolyte imbalance?
- A.
U wave
- B.
P wave
- C.
Q wave
- D.
R wave
- 64.The heart's ability to create its own electrical impulse is known as
- A.
Conductivity
- B.
Contractility
- C.
Automaticity
- D.
Excitability
- 65.The sympathetic system of the body causes the heart rate to
- A.
Increase
- B.
Decrease
- C.
Remain the same
- D.
None of the above
- 66.Which vessel of the body contains the highest concentration of oxygen?
- A.
Aorta
- B.
Pulmonary vein
- C.
Pulmonary artery
- D.
Vena cava
- 67.The heart is contained inside a sac also known as the
- A.
Endocardium
- B.
Pericardial sac
- C.
Myocardium sac
- D.
Fluid sac
- 68.Which of the following would have the least effect on the heart rate?
- A.
Stress, exercise, and fever
- B.
ANS
- C.
Potassium and calcium
- D.
Respiratory rate
- 69.period between the beginning of one beat of the heart to the next
- A.
Cardiac cycle
- B.
Systole
- C.
Diastole
- 70.circulation of blood through the heart and heart muscle
- A.
Systemic circulation
- B.
Pulmonary cirulation
- C.
Coronary circulation
- 71.blood that has little or no oxygen
- A.
Oxygenated blood
- B.
Deoxygenated blood
- C.
Cardiac cycle
- 72.phase of the cardiac cycle when the heart is expanding and refilling; also known as the relaxation phase
- A.
Cardiac cycle
- B.
Diastole
- C.
Systole
- 73.blood having oxygen
- A.
Oxygenated blood
- B.
Deoxygenated blood
- C.
Diastole
- 74.circulation between the heart and the entire body exluding the lungs
- A.
Pulmonary cirulation
- B.
Systemic circulation
- C.
Coronary circulation
- 75.transportation of blood to and from the lungs
- A.
Coronary circulation
- B.
Systemic circulation
- C.
Pulmonary cirulation
- 76.contraction phase of the cardiac cycle, when the heart is pumping blood out to the body
- A.
Systole
- B.
Cardiac cycle
- C.
Diastole
Back to top