Question 1

The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is ___________.

Accepted Answer

A)  ischemia 
B)  myocardial infarct 
C)  pericarditis 
D)  angina pectoris 
A)  ischemia 
B)  myocardial infarct 
C)  pericarditis 
D)  angina pectoris

Question 2

A 14-year-old girl undergoing a physical examination prior to being admitted to summer camp was found to have a loud diastolic murmur at the second intercostal space to the left side of the sternum. Explain the reason for the loud heart murmur associated with this girl's condition.

Accepted Answer

The heart murmur is due to inc

Question 3

Isovolumetric contraction__________ .

Accepted Answer

A)  occurs while the atrioventricular (AV) valves are open 
B)  occurs immediately after the aortic and pulmonary semilunar valves close 
C)  refers to the short period during ventricular systole when the ventricles are completely closed chambers 
D)  occurs only in people with heart valve defects 
A)  occurs while the atrioventricular (AV) valves are open 
B)  occurs immediately after the aortic and pulmonary semilunar valves close 
C)  refers to the short period during ventricular systole when the ventricles are completely closed chambers 
D)  occurs only in people with heart valve defects

Question 4

If blood volume decreased dramatically due to massive bleeding, the autonomic nervous system will attempt to maintain cardiac output by increasing the heart rate.

Accepted Answer

A) True 
 B)False

Question 5

An electrocardiogram (ECG) provides direct information about valve function.

Accepted Answer

A) True 
 B)False

Question 6

The left ventricular wall of the heart is thicker than the right wall in order to__________ .

Accepted Answer

A)  expand the thoracic cage during diastole 
B)  accommodate a greater volume of blood 
C)  pump blood with greater pressure 
D)  pump blood through a smaller valve 
A)  expand the thoracic cage during diastole 
B)  accommodate a greater volume of blood 
C)  pump blood with greater pressure 
D)  pump blood through a smaller valve

Question 7

A Doppler ultrasound was performed on an infant who had symptoms of breathlessness and it was found that he had a patent ductus arteriosus. Discuss the location and function of the ductus arteriosus in the fetus and relate it to the reason for the infant's breathlessness.

Accepted Answer

The ductus arteriosus is a shunt between

Question 8

The foramen ovale__________ .

Accepted Answer

A)  is a condition in which the heart valves do not completely close 
B)  is a connection between the pulmonary trunk and the aorta in the fetus 
C)  connected the two atria in the fetal heart 
D)  is a shallow depression in the interventricular septum 
A)  is a condition in which the heart valves do not completely close 
B)  is a connection between the pulmonary trunk and the aorta in the fetus 
C)  connected the two atria in the fetal heart 
D)  is a shallow depression in the interventricular septum

Question 9

What two important functions does the intrinsic cardiac conduction system perform?

Accepted Answer

The important functions of the intrinsic

Question 10

The second heart sound is heard during which phase of the cardiac cycle?

Accepted Answer

A)  isovolumetric relaxation 
B)  ventricular filling 
C)  ventricular ejection 
D)  isovolumetric contraction 
A)  isovolumetric relaxation 
B)  ventricular filling 
C)  ventricular ejection 
D)  isovolumetric contraction

Question 11

If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells,__________ .

Accepted Answer

A)  tetanic contractions might occur, which would stop the heart's pumping action 
B)  contractions would last as long as the refractory period 
C)  pacemaker cells would cease to spontaneously depolarize 
D)  it would be much longer before cardiac cells could respond to a second stimulation 
A)  tetanic contractions might occur, which would stop the heart's pumping action 
B)  contractions would last as long as the refractory period 
C)  pacemaker cells would cease to spontaneously depolarize 
D)  it would be much longer before cardiac cells could respond to a second stimulation

Question 12

The parietal pericardium ___________.

Accepted Answer

A)  is found within the pericardial cavity 
B)  is separated from the fibrous pericardium by serous fluid 
C)  is also called the epicardium 
D)  lines the internal surface of the fibrous pericardium 
A)  is found within the pericardial cavity 
B)  is separated from the fibrous pericardium by serous fluid 
C)  is also called the epicardium 
D)  lines the internal surface of the fibrous pericardium

Question 13

The receiving chambers of the heart include the__________ .

Accepted Answer

A)  right and left atria 
B)  right and left ventricles 
C)  left atrium and ventricle 
D)  right atrium and ventricle 
A)  right and left atria 
B)  right and left ventricles 
C)  left atrium and ventricle 
D)  right atrium and ventricle

Question 14

What is the functional importance of the intercalated discs of cardiac muscle? What is the functional importance of the fibrous cardiac skeleton of the heart?

Accepted Answer

Intercalated discs contain anchoring des

Question 15

A patient takes a nitroglycerin tablet sublingually for chest pain. Nitroglycerin acts directly on smooth muscle, producing relaxation and vessel dilation. How would this relieve chest pain?

Accepted Answer

Angina pectoris is thoracic pain caused

Question 16

If cardiac muscle is deprived of its normal blood supply, damage would primarily result from__________ .

Accepted Answer

A)  an inadequate supply of lactic acid 
B)  a decrease in the number of available mitochondria for energy production 
C)  a lack of nutrients to feed into metabolic pathways 
D)  decreased delivery of oxygen 
A)  an inadequate supply of lactic acid 
B)  a decrease in the number of available mitochondria for energy production 
C)  a lack of nutrients to feed into metabolic pathways 
D)  decreased delivery of oxygen

Question 17

If the vagal nerves to the heart were cut, the result would be that ___________.

Accepted Answer

A)  the heart rate would increase by about 25 beats per minute 
B)  the atrioventricular (AV) node would become the pacemaker of the heart 
C)  parasympathetic stimulation would increase, causing a decrease in heart rate 
D)  the heart would stop, since the vagal nerves trigger the heart to contract 
A)  the heart rate would increase by about 25 beats per minute 
B)  the atrioventricular (AV) node would become the pacemaker of the heart 
C)  parasympathetic stimulation would increase, causing a decrease in heart rate 
D)  the heart would stop, since the vagal nerves trigger the heart to contract

The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is ___________.

A 14-year-old girl undergoing a physical examination prior to being admitted to summer camp was found to have a loud diastolic murmur at the second intercostal space to the left side of the sternum. Explain the reason for the loud heart murmur associated with this girl's condition.

Isovolumetric contraction__________ .

If blood volume decreased dramatically due to massive bleeding, the autonomic nervous system will attempt to maintain cardiac output by increasing the heart rate.

An electrocardiogram (ECG) provides direct information about valve function.

The left ventricular wall of the heart is thicker than the right wall in order to__________ .

A Doppler ultrasound was performed on an infant who had symptoms of breathlessness and it was found that he had a patent ductus arteriosus. Discuss the location and function of the ductus arteriosus in the fetus and relate it to the reason for the infant's breathlessness.

The foramen ovale__________ .

What two important functions does the intrinsic cardiac conduction system perform?

The second heart sound is heard during which phase of the cardiac cycle?

If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells,__________ .

The parietal pericardium ___________.

The receiving chambers of the heart include the__________ .

What is the functional importance of the intercalated discs of cardiac muscle? What is the functional importance of the fibrous cardiac skeleton of the heart?

A patient takes a nitroglycerin tablet sublingually for chest pain. Nitroglycerin acts directly on smooth muscle, producing relaxation and vessel dilation. How would this relieve chest pain?

If cardiac muscle is deprived of its normal blood supply, damage would primarily result from__________ .

If the vagal nerves to the heart were cut, the result would be that ___________.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters

Exam 18: The Cardiovascular System: the Heart

The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is ___________.

A 14-year-old girl undergoing a physical examination prior to being admitted to summer camp was found to have a loud diastolic murmur at the second intercostal space to the left side of the sternum. Explain the reason for the loud heart murmur associated with this girl's condition.

Isovolumetric contraction__________ .

If blood volume decreased dramatically due to massive bleeding, the autonomic nervous system will attempt to maintain cardiac output by increasing the heart rate.

An electrocardiogram (ECG) provides direct information about valve function.

The left ventricular wall of the heart is thicker than the right wall in order to__________ .

A Doppler ultrasound was performed on an infant who had symptoms of breathlessness and it was found that he had a patent ductus arteriosus. Discuss the location and function of the ductus arteriosus in the fetus and relate it to the reason for the infant's breathlessness.

The foramen ovale__________ .

What two important functions does the intrinsic cardiac conduction system perform?

The second heart sound is heard during which phase of the cardiac cycle?

If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells,__________ .

The parietal pericardium ___________.

The receiving chambers of the heart include the__________ .

What is the functional importance of the intercalated discs of cardiac muscle? What is the functional importance of the fibrous cardiac skeleton of the heart?

A patient takes a nitroglycerin tablet sublingually for chest pain. Nitroglycerin acts directly on smooth muscle, producing relaxation and vessel dilation. How would this relieve chest pain?

If cardiac muscle is deprived of its normal blood supply, damage would primarily result from__________ .

If the vagal nerves to the heart were cut, the result would be that ___________.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters