ECG Ch. 1-10 MC questions
Which of the following influence a All of the above
persons heart size and weight?
A. Age
B. Body weight
C. Heart disease
D. Physical exercise frequency
Select the areas of the heart that (B,C,D) Right atrium, Left ventricle, Right ventricle
make up its anterior surface.
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
The inferior surface of the heart is Right and left ventricles
formed mainly by the
A. Right and left atria
B. Right and left ventricles
C. Left atrium and left ventricle
D. Right atrium and right ventricle
The pericardium.... (B,C,D) Protects the heart from trauma and infection, Uses
A. Is a thick, single layer of tissue ligaments to anchor the heart to the sternum and diaphragm,
B. Protects the heart from Contains about 20 mL of serous fluid that prevents friction as the
trauma and infection heart beats
C. Uses ligaments to anchor the
heart to the sternum and
diaphragm
D. Contains about 20 mL of serous
fluid that prevents friction as
the heart beats
,The right atrium.... Receives blood from the superior and inferior vena cava and the coronary
A. Pumps blood to the lungs sinus
B. Pumps blood to the systemic
circulation
C. Receives blood from the right
and left pulmonary veins
D. Receives blood from the
superior and inferior vena cava
and the coronary sinus
When a ventricle relaxes in A semilunar valve
the normal heart, blood is
prevented from flowing back
into it by...
A. The mitral valve
B. A semilunar valve
C. The tricuspid valve
D. An atrioventricular valve
Which of the following separate (B,D) Mitral valve, Tricuspid valve
the atria from the ventricles?
A. Aortic valve
B. Mitral valve
C. Pulmonic valve
D. Tricuspid valve
Select the correct statements (A,B,D) The circumflex artery is a branch of the left coronary
about the hearts coronary artery, The main coronary arteries lie on the epicardial surface of
arteries..... the heart, The right coronary artery supplies the sinoatrial node
A. The circumflex artery is a and atrioventricular bundle in most of the population
branch of the left coronary
artery
B. The main coronary
arteries lie on the epicardial
surface of the heart
C. The septal and diagonal
arteries are major branches of
the right coronary artery
D. The right coronary
artery supplies the sinoatrial
node and atrioventricular bundle
in most of the population
E. Occlusion of the cx artery
has been referred to as the
"widow maker"
Which of the following factors (C,D,E,F) Preload, After load, Heart rate, Myocardial contractility
determine cardiac output?
A. Age
B. Gender
C. Preload
D. After load
, E. Heart rate
F. Myocardial contractility
Which of the following influence a All of the above
persons heart size and weight?
A. Age
B. Body weight
C. Heart disease
D. Physical exercise frequency
Select the areas of the heart that (B,C,D) Right atrium, Left ventricle, Right ventricle
make up its anterior surface.
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
The inferior surface of the heart is Right and left ventricles
formed mainly by the
A. Right and left atria
B. Right and left ventricles
C. Left atrium and left ventricle
D. Right atrium and right ventricle
The pericardium.... (B,C,D) Protects the heart from trauma and infection, Uses
A. Is a thick, single layer of tissue ligaments to anchor the heart to the sternum and diaphragm,
B. Protects the heart from Contains about 20 mL of serous fluid that prevents friction as the
trauma and infection heart beats
C. Uses ligaments to anchor the
heart to the sternum and
diaphragm
D. Contains about 20 mL of serous
fluid that prevents friction as
the heart beats
,The right atrium.... Receives blood from the superior and inferior vena cava and the coronary
A. Pumps blood to the lungs sinus
B. Pumps blood to the systemic
circulation
C. Receives blood from the right
and left pulmonary veins
D. Receives blood from the
superior and inferior vena cava
and the coronary sinus
When a ventricle relaxes in A semilunar valve
the normal heart, blood is
prevented from flowing back
into it by...
A. The mitral valve
B. A semilunar valve
C. The tricuspid valve
D. An atrioventricular valve
Which of the following separate (B,D) Mitral valve, Tricuspid valve
the atria from the ventricles?
A. Aortic valve
B. Mitral valve
C. Pulmonic valve
D. Tricuspid valve
Select the correct statements (A,B,D) The circumflex artery is a branch of the left coronary
about the hearts coronary artery, The main coronary arteries lie on the epicardial surface of
arteries..... the heart, The right coronary artery supplies the sinoatrial node
A. The circumflex artery is a and atrioventricular bundle in most of the population
branch of the left coronary
artery
B. The main coronary
arteries lie on the epicardial
surface of the heart
C. The septal and diagonal
arteries are major branches of
the right coronary artery
D. The right coronary
artery supplies the sinoatrial
node and atrioventricular bundle
in most of the population
E. Occlusion of the cx artery
has been referred to as the
"widow maker"
Which of the following factors (C,D,E,F) Preload, After load, Heart rate, Myocardial contractility
determine cardiac output?
A. Age
B. Gender
C. Preload
D. After load
, E. Heart rate
F. Myocardial contractility
