Question 1

The pulmonary arteries carry blood to the:

Accepted Answer

A)  lungs. 
B)  left atrium. 
C)  right atrium. 
D)  None of the above are correct. 
A)  lungs. 
B)  left atrium. 
C)  right atrium. 
D)  None of the above are correct.

Question 2

The cardiac plexus contains both parasympathetic fibers and sympathetic fibers.

Accepted Answer

A) True 
 B)False

Question 3

Chordae tendineae are associated with which structure?

Accepted Answer

A)  Aortic valve 
B)  Mitral valve 
C)  Tricuspid valve 
D)  Both B and C 
A)  Aortic valve 
B)  Mitral valve 
C)  Tricuspid valve 
D)  Both B and C

Question 4

Name, describe, and give the function of the heart coverings.

Accepted Answer

The heart coverings, also known as the p

Question 5

The heart is autorhythmic, which means it can generate its own action potential without outside nerve stimulation.

Accepted Answer

A) True 
 B)False

Question 6

If the AV node were forced to assume pacemaker activity, the resulting pulse rate would be _____ beats per minutes.

Accepted Answer

A)  10 to 30 
B)  20 to 40 
C)  30 to 50 
D)  40 to 60 
A)  10 to 30 
B)  20 to 40 
C)  30 to 50 
D)  40 to 60

Question 7

Heart sounds are made by the closing of AV and semilunar valves.

Accepted Answer

A) True 
 B)False

Question 8

Blood leaving the right ventricle passes through the right atrioventricular valve.

Accepted Answer

A) True 
 B)False

Question 9

Match each part of the conduction system of the heart to the description of its location or function.
-Structure through which conduction moves most slowly

Accepted Answer

A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles 
A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles

Question 10

The thickest layer of tissue in the heart wall is the:

Accepted Answer

A)  epicardium. 
B)  pericardium. 
C)  myocardium. 
D)  endocardium. 
A)  epicardium. 
B)  pericardium. 
C)  myocardium. 
D)  endocardium.

Question 11

A drop in blood oxygen levels will stimulate an increase in the heart rate.

Accepted Answer

A) True 
 B)False

Question 12

As a person grows to adulthood, the heart increases in size and becomes a greater percentage of the body weight.

Accepted Answer

A) True 
 B)False

Question 13

The right and left coronary arteries are about equally dominant in hearts: 50% of hearts are right artery dominant and 50% of hearts are left artery dominant.

Accepted Answer

A) True 
 B)False

Question 14

The lower part of the heart forms a blunt point known as the base.

Accepted Answer

A) True 
 B)False

Question 15

Describe the anatomic positioning of the heart.

Accepted Answer

The heart is located in the thoracic cav

Question 16

The heart begins beating in the fetus at about what stage of development?

Accepted Answer

A)  Fourth month 
B)  Second month 
C)  After about 4 weeks 
D)  After about 2 weeks 
A)  Fourth month 
B)  Second month 
C)  After about 4 weeks 
D)  After about 2 weeks

Question 17

The right ventricle has the thickest wall of any of the heart chambers.

Accepted Answer

A) True 
 B)False

Question 18

The heart of the developing human embryo begins to beat regularly early in the fourth week after fertilization.

Accepted Answer

A) True 
 B)False

Question 19

Blood passing through a semilunar valve will enter an artery.

Accepted Answer

A) True 
 B)False

Question 20

Pericardial fluid can be found between the:

Accepted Answer

A)  myocardium and the epicardium. 
B)  myocardium and the endocardium. 
C)  pericardium and the ribs. 
D)  epicardium and the pericardium. 
A)  myocardium and the epicardium. 
B)  myocardium and the endocardium. 
C)  pericardium and the ribs. 
D)  epicardium and the pericardium.

Exam 28: Heart

The pulmonary arteries carry blood to the:

The cardiac plexus contains both parasympathetic fibers and sympathetic fibers.

Chordae tendineae are associated with which structure?

Name, describe, and give the function of the heart coverings.

The heart is autorhythmic, which means it can generate its own action potential without outside nerve stimulation.

If the AV node were forced to assume pacemaker activity, the resulting pulse rate would be _____ beats per minutes.

Heart sounds are made by the closing of AV and semilunar valves.

Blood leaving the right ventricle passes through the right atrioventricular valve.

Match each part of the conduction system of the heart to the description of its location or function. -Structure through which conduction moves most slowly

The thickest layer of tissue in the heart wall is the:

A drop in blood oxygen levels will stimulate an increase in the heart rate.

As a person grows to adulthood, the heart increases in size and becomes a greater percentage of the body weight.

The right and left coronary arteries are about equally dominant in hearts: 50% of hearts are right artery dominant and 50% of hearts are left artery dominant.

The lower part of the heart forms a blunt point known as the base.

Describe the anatomic positioning of the heart.

The heart begins beating in the fetus at about what stage of development?

The right ventricle has the thickest wall of any of the heart chambers.

The heart of the developing human embryo begins to beat regularly early in the fourth week after fertilization.

Blood passing through a semilunar valve will enter an artery.

Pericardial fluid can be found between the:

Organization of the Body

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