Question 1

The long plateau in the action potential observed in cardiocytes is probably related with __________ staying longer in the cytosol.

Accepted Answer

A)  Na+
B)  K+
C)  Ca2+
D)  Cl-
E)  Na+, K+, and Ca2+F) C) and D)
G) A) and D)

Question 2

Isovolumetric contraction occurs during the __________ of the electrocardiogram.

Accepted Answer

A)  P wave
B)  P-Q segment
C)  R wave
D)  S-T segment
E)  T waveF) C) and E)
G) B) and E)

Question 3

Mitral valve prolapse (MVP) generates a murmur associated with the __________ heart sound that occurs when the __________.

Accepted Answer

A)  lubb (S1) ; atria contract
B)  dupp (S2) ; atria relax
C)  lubb (S1) ; ventricles contract
D)  dupp (S2) ; ventricles relax
E)  lubb (S1) ; ventricles relaxF) A) and B)
G) C) and E)

Question 4

Mercury is used to measure blood pressure because it is __________ compared to other liquids.

Accepted Answer

A)  more dense
B)  less dense
C)  darker in color
D)  lighter in color
E)  warmerF) All of the above
G) A) and C)

Question 5

The chordae tendinae of the AV valves are anchored to the __________ of the ventricles.

Accepted Answer

A)  papillary muscles
B)  pectinate muscles
C)  trabeculae carnae
D)  interventricular septum
E)  interatrial septumF) None of the above
G) A) and B)

Question 6

Atrial hypertrophy would probably cause an enlarged P wave on an electrocardiogram.

Accepted Answer

A) True 
 B)False

Question 7

The __________ carry blood toward the lungs.

Accepted Answer

A)  pulmonary arteries and veins
B)  pulmonary trunk and arteries
C)  pulmonary trunk and veins
D)  superior and inferior venae cavae
E)  aorta and pulmonary arteriesF) C) and D)
G) B) and E)

Question 8

The __________ are the superior chambers of the heart and the _________ are the inferior chambers of the heart.

Accepted Answer

A)  visceral percardia; parietal pericardia
B)  ventricles; atria
C)  atria; ventricles
D)  left ventricles; right ventricles
E)  left atria; right atriaF) D) and E)
G) B) and D)

Question 9

The __________ is the pacemaker that initiates each heart beat.

Accepted Answer

A)  sympathetic division of the nervous system
B)  autonomic nervous system
C)  sinoatrial (S
A)   node
D)  atrioventricular (AV)  node
E)  cardiac conduction systemF) All of the above
G) B) and E)

Exam 19: The Circulatory System: Heart

Atrial hypertrophy would probably cause an enlarged P wave on an electrocardiogram.

Correct Answer
verified

The __________ carry blood toward the lungs.

Correct Answer
verified

Mercury is used to measure blood pressure because it is __________ compared to other liquids.

Correct Answer
verified

The long plateau in the action potential observed in cardiocytes is probably related with __________ staying longer in the cytosol.

Correct Answer
verified

The __________ is the pacemaker that initiates each heart beat.

Correct Answer
verified

The chordae tendinae of the AV valves are anchored to the __________ of the ventricles.

Correct Answer
verified

The __ are the superior chambers of the heart and the _ are the inferior chambers of the heart.

Correct Answer
verified

Mitral valve prolapse (MVP) generates a murmur associated with the heart sound that occurs when the .

Correct Answer
verified

Isovolumetric contraction occurs during the __________ of the electrocardiogram.

Correct Answer
verified

Exam 19: The Circulatory System: Heart

Atrial hypertrophy would probably cause an enlarged P wave on an electrocardiogram.

Correct AnswerverifiedShow Answer

The __________ carry blood toward the lungs.

Correct AnswerverifiedShow Answer

Mercury is used to measure blood pressure because it is __________ compared to other liquids.

Correct AnswerverifiedShow Answer

The long plateau in the action potential observed in cardiocytes is probably related with __________ staying longer in the cytosol.

Correct AnswerverifiedShow Answer

The __________ is the pacemaker that initiates each heart beat.

Correct AnswerverifiedShow Answer

The chordae tendinae of the AV valves are anchored to the __________ of the ventricles.

Correct AnswerverifiedShow Answer

The __________ are the superior chambers of the heart and the _________ are the inferior chambers of the heart.

Correct AnswerverifiedShow Answer

Mitral valve prolapse (MVP) generates a murmur associated with the __________ heart sound that occurs when the __________.

Correct AnswerverifiedShow Answer

Isovolumetric contraction occurs during the __________ of the electrocardiogram.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The __ are the superior chambers of the heart and the _ are the inferior chambers of the heart.

Correct Answer
verified

Mitral valve prolapse (MVP) generates a murmur associated with the heart sound that occurs when the .

Correct Answer
verified

Correct Answer
verified