Online Module 2 Quiz
Chapter 2 quiz for Online EKG Technician ProgramEach of the questions or incomplete statements below is followed by suggested answers or completions. Select the one answer that is best in each case. You must obtain a 80% to pass and you will not be able to review your answers
- 1.The normal heart is the size of a
- A.
Foot.
- B.
Cherry.
- C.
Man’s fist.
- D.
Watermelon.
- 2.The top of the heart where the great vessels emerge is the
- A.
Apex.
- B.
Base.
- C.
Chordae tendonae.
- D.
Tricuspid valve.
- 3.The fibrous tissue that divides the heart into right and left sides is the
- A.
Chordae tendonae
- B.
Papillary muscle.
- C.
Septum.
- D.
Pulmonic valve.
- 4.The apex of the heart is located at the
- A.
Top of the heart, where the great vessels emerge.
- B.
Right side of the heart.
- C.
Bottom of the heart, at the leftmost tip.
- D.
The back wall of the heart.
- 5.Pericardial fluid
- A.
Decreases friction of the pericardial layers as they rub against each other.
- B.
Prevents backflow of blood from one chamber to the other.
- C.
Circulates through the heart’s chambers.
- D.
Lubricates the electrical system of the heart.
- 6.The innermost layer of the heart is the
- A.
Epicardium.
- B.
Pericardium.
- C.
Endocardium.
- D.
Myocardium.
- 7.The layer of the heart that is damaged during a heart attack is the
- A.
Epicardium.
- B.
Pericardium.
- C.
Endocardium.
- D.
Myocardium.
- 8.Which of these statements about the pericardium is NOT TRUE?
- A.
It anchors the heart to the diaphragm and great vessels
- B.
It is a two-layer sac enclosing the heart.
- C.
It serves as protection for the heart.
- D.
It is the wall of the heart that is damaged in a heart attack.
- 9.Which of the following statements about the right atrium is true?
- A.
It is a receiving chamber for oxygenated blood returning from the lungs.
- B.
It is the major pumping chamber of the heart.
- C.
It is about 100% saturated with oxygen.
- D.
It is the receiving chamber for deoxygenated blood coming from the vena cava.
- 10.Which heart chamber delivers oxygenated blood to the entire body?
- A.
Right atrium
- B.
Right ventricle
- C.
Left atrium
- D.
Left ventricle
- 11.The heart’s valves open and close in response to changes in
- A.
Oxygenation.
- B.
Sodium and potassium concentration.
- C.
Pressure.
- D.
The heart’s pacemaker.
- 12.Heart valves serve what purpose?
- A.
They prevent blood from flowing forward.
- B.
They prevent oxygenated blood from flowing through the coronary arteries.
- C.
They prevent backflow of blood.
- D.
They control the heart’s electrical signals.
- 13.The valve that separates the right atrium and right ventricle is the
- A.
Mitral valve.
- B.
Pulmonic valve.
- C.
Aortic valve.
- D.
Tricuspid valve.
- 14.The heart valve found at the opening of the pulmonary artery is the
- A.
Aortic valve.
- B.
Tricuspid valve.
- C.
Mitral valve.
- D.
Pulmonic valve.
- 15.Which of the following are both AV valves?
- A.
Tricuspid and mitral valves
- B.
Aortic and mitral valves
- C.
Mitral and pulmonic valves
- D.
Aortic and pulmonic valves
- 16.The first heart sound (S1) is associated with closure of which heart valves?
- A.
Mitral and aortic
- B.
Tricuspid and pulmonic
- C.
Tricuspid and mitral
- D.
Aortic and pulmonic
- 17.The second heart sound (S2) is associated with closure of which heart valves?
- A.
Mitral and aortic
- B.
Tricuspid and pulmonic
- C.
Tricuspid and mitral
- D.
Aortic and pulmonic
- 18.The structure that prevents backflow of blood is the
- A.
Trebeculae carnae.
- B.
Superior vena cava.
- C.
Papillary muscle.
- D.
Valve.
- 19.What causes heart sounds?
- A.
Blood traveling through the heart
- B.
Opening of the heart valves
- C.
Closing of the heart valves
- D.
Blood hitting an obstruction in the peripheral circulation
- 20.Through which structure must the blood travel in order to leave the right ventricle?
- A.
Right atrium
- B.
Tricuspid valve
- C.
Left ventricle
- D.
Pulmonic valve
- 21.The parasympathetic nervous system causes
- A.
Slowed digestion.
- B.
Decrease in heart rate.
- C.
Pupillary dilation.
- D.
Increase in blood pressure.
- 22.Which valves open to allow the ventricles to fill?
- A.
Aortic and pulmonic
- B.
Tricuspid and pulmonic
- C.
Tricuspid and mitral
- D.
Aortic and mitral
- 23.The inferior vena cava returns deoxygenated blood to the heart from
- A.
The head and neck.
- B.
The coronary circulation.
- C.
The lower extremities and abdomen.
- D.
None of these—the vena cava carries oxygenated blood.
- 24.Through which vessel does oxygenated blood enter the capillaries?
- A.
Aorta
- B.
Veins
- C.
Venules
- D.
Arterioles
- 25.Which of the following is the correct sequence of blood flow through the peripheral circulation?
- A.
Arteries–veins–vena cava–capillaries
- B.
Arteries–arterioles–capillaries–venules– veins
- C.
Veins–venules–capillaries–arterioles– arteries
- D.
Capillaries–arterioles and venules–arteries and veins
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