Chapter 7 Cardiovascular System Flashcards
The heart is lined with a smooth, delicate membrane called the:
a) myocardium.
b) pericardium
c) epicardium.
d) endocardium.
Endocardium
The heart rate is controlled by the:
a) autonomic nervous system.
b) sympathetic nervous system.
c) AV node.
d) Purkinje fibers.
Autonomic nervous system
Which hormone increases heart rate and increases the force of its contractions?
a) Acetylcholine
b) Epinephrine
c) Norepinephrine
d) Cortisone
Epinephrine
The left atrioventricular (AV) valve is also called the:
a) tricuspid valve
b) mitral valve
c) quadcuspid valve
d) chordae tendineae.
Mitral valve
Which structure separates the right and left sides of the heart?
a) Papillary muscle
b) Myocardium
c) Septum
d) Endocardium
Septum
The tricuspid valve is located:
a) between the left ventricle and aorta
b) between the left atrium and ventricle
c) between the right ventricle and the pulmonary artery
d) between the right atrium and ventricle.
Between the right atrium and ventricle
Deoxygenated venous blood returns to the heart via the:
a) right and left coronary arteries.
b) pulmonary veins.
c) superior and inferior vena cava
d) pulmonary arteries.
Superior and inferior vena cava
The superior and inferior vena cava empty into the:
a) right atrium.
b) left atrium
c) right ventricle
d) left ventricle.
Right Atrium
The right ventricle pumps blood into the:
a) pulmonary veins
b) aorta
c) superior and inferior vena cava
d) pulmonary artery
Pulmonary artery
The pulmonary veins empty into the:
a) right atrium.
b) right ventricle
c) left atrium.
d) left ventricle.
Left Atrium
Deoxygenated blood is carried from the heart to the lungs via the:
a) pulmonary veins.
b) pulmonary arteries.
c) aorta.
d) coronary arteries.
Pulmonary arteries
Systole is defined as the:
a) contraction phase.
b) relaxation phase.
c) resting phase.
d) mechanical phase.
Contraction phase
What term is applied to the contraction phase of the heart?
a) Diastole
b) Systole
c) Impulse
d) Synapse
Systole
What term is applied to the relaxed, filling phase of the heart?
a) Synapse
b) Impulse
c) Systole
d) Diastole
Diastole
Which of the following is termed the “pacemaker” of the heart?
a) Purkinje fibers
b) Bundle of His
c) SA node
d) AV node
SA node
Which of the following is the correct order of the impulse of a heartbeat through the components of the conduction system?
a) SA node, AV node, Bundle of HIS, Purkinje fibers
b) AV node, Bundle of His, Purkinje fibers, SA node
c) SA node, Bundle of His, AV node, Purkinje fibers
d) AV node, Purkinje fibers, SA node, Bundle of His
SA node, AV node, Bundle of HIS, Purkinje fibers
What is the function of the pericardium?
a) Provide the contraction, pumping action
of the heart.
b) Initiate the heartbeat.
c) Protect against friction and permit free movement of the heart during contraction.
d) Provide an intrinsic rhythm in case the autonomic nervous system fails.
Protect against friction and permit free movement of the heart during contraction
The double-walled membranous sac that protects against friction and permits the heart to move freely during contraction is called the:
a) epicardium
b) pericardium
c) endocardium
d) myocardium
Pericardium
The most common congenital cardiac lesions are:
a) tetralogy of Fallot.
b) coarctation of the aorta.
c) right-to-left shunts.
d) left-to-right shunts.
Left-to-right shunts
Which condition results when the foramen ovale fails to close soon after birth?
a) Atrial septal defect
b) Ventricular septal defect
c) Tetralogy of Fallot
d) Patent ductus arteriosus
Atrial septal defect
Which congenital cardiac lesion appears radiographically as an enlarged left atrium, left ventricle, and central pulmonary arteries, along with diffuse increased pulmonary vasculature?
a. Atrial septal defect
b. Patent foramen ovale
c. Patent ductus arteriosus
d. Tetralogy of Fallot
Patent ductus arteriosus
Which congenital cardiac lesion appears radiographically as an enlarged right atrium, right ventricle, and pulmonary outflow tract?
a. Coarctation of the aorta
b. Atrial septal defect
c. Ventricular spetal defect
d. Patent ductus arteriosus
Atrial septal defect
What is the radiographic evidence of ventricular septal defect?
a) Enlarged right atrium and ventricle
b) Enlarged left ventricle
c) Enlarged aorta
d) Enlarged pulmonary trunk
Enlarged pulmonary trunk
Which of the following is an abnormal vascular connection between the pulmonary artery and aorta?
a. Patent ductus arteriosus
b. Patent foramen ovale
c. Rheumatic heart disease
d. Chordae tendineae
Patent ductus arteriosus
All left-to-right shunts can be complicated by the development of:
a) pulmonary hypertension.
b) congestive heart failure.
c) rheumatic heart disease.
d) mitral valve prolapse.
Pulmonary hypertension
Which imaging modality is the most definitive, yet the most invasive, for demonstration of the heart atria and ventricles?
a. MRI
b. Echocardiography
c. CT
d. Angiography
Angiography
What is the most common cause of cyanotic congenital heart disease?
a) Coarctation of the aorta
b) Tetralogy of Fallot
c) Ventricular septal defect
d) Atrial septal defect
Tetralogy of Fallot
Constriction of the aorta at the distal arch is termed: a) coarctation of the aorta.
b) tetralogy of Fallot.
c) aortic prolapse.
d) aortic valve insufficiency.
Coarctation of the aorta
Which of the following shows up clinically as normal blood pressure in the upper extremities and low blood pressure in the lower extremities?
a. Aortic prolapse
b. Mitral valve prolapse
c. Coarctation of the aorta
d. Ventricular septal defect
Coarctation of the aorta
Rib notching is a radiographic characteristic of:
a) ventricular septal defect.
b) coarctation of the aorta.
c) atrial septal defect.
d) tetralogy of Fallot.
Coarctation of the aorta
Which of the following causes ischemic heart disease as a result of decreased oxygen to the myocardium?
a. Mitral valve prolapse
b. Tetralogy of Fallot
c. Coronary artery disease
d. Coarctation of the aorta
Coronary artery disease
What is atherosclerosis?
a) Fatty deposits on the inner lining of arteries.
b) Loss of arterial wall elasticity.
c) Calcification of the aorta caused by metabolic error.
d) Sudden, acute arterial collapse.
Fatty deposits on the inner lining of arteries
Fatty deposits along the lining of arterial walls is termed:
a) coarctation.
b) atherosclerosis.
c) Eisenmenger’s syndrome.
d) myocardial infarction.
Atherosclerosis
What is a myocardial infarction?
a) An accumulation of fatty material on the
myocardium
b) A drastic increase in the size of myocardial cells
c) Death of myocardial cells
d) Neoplastic proliferation of myocardial cells
Death of myocardial cells
Death of myocardial cells caused by a lack of blood supply is known as a:
a) congestive heart failure (CHF).
b) cardiogenic shock.
c) cardiopulmonary ischemia.
d) myocardial infarction.
Myocardial infarction
The inability of the heart to propel blood at a rate and volume sufficient to provide an adequate supply to the tissues is called:
a. myocardial infarction.
b. congestive heart failure.
c. cardiogenic shock.
d. coronary angioplasty.
Congestive heart failure
Which of the following are causes of congestive heart failure?
a) Hypertension
b) Impaired heart contractions
c) Increased peripheral resistance to blood flow
d) Hypertension, Impaired heart contractions and increased peripheral resistance to blood flow
Hypertension, Impaired heart contractions and increased peripheral resistance to blood flow
An abnormal accumulation of fluid in the extravascular pulmonary tissues is termed:
a) pulmonary edema.
b) congestive heart failure.
c) pulmonary embolism.
d) pulmonary infarct.
Pulmonary edema
The most common cause of pulmonary edema is:
a) mitral valve disease.
b) embolism.
c) bronchial tumor.
d) elevated pulmonary venous pressure.
Elevated pulmonary venous pressure
Which of the following might cause pulmonary edema?
a) Mitral valve disease
b) Narcotic overdose
c) Adult respiratory distress syndrome
d) Mitral valve disease, narcotic overdose, and adult respiratory distress syndrome
Mitral valve disease, narcotic overdose, and adult respiratory distress syndrome
The leading cause of strokes and CHF is:
a) myocardial infarction.
b) cardiogenic shock.
c) hypertension.
d) pulmonary edema.
Hypertension
High blood pressure is defined as a systolic pressure above _____ mm Hg and a diastolic pressure above _____ mm Hg.
a. 90/140
b. 140/90
c. 100/70
d. 70/100
140/90
What is an aneurysm?
a) An area of an artery in which the lumen is narrowed or stenotic.
b) An area of an artery in which the walls are dilated.
c) A benign tumor of the inner lining of the arterial wall.
d) A malignant tumor of the muscular layer of the arterial wall.
An area of an artery in which the walls are dilated
A localized dilatation of an artery is termed a(n):
a) aneurysm.
b) coarctation.
c) stenosis.
d) dissection.
Aneurysm
When an artery is dilated, or bulging, on only one side of the arterial wall, it is termed a:
a) fusiform aneurysm.
b) saccular aneurysm.
c) lobar arterial tumor.
d) unilobar arterial tumor.
Saccular aneurysm
When the entire circumference of the vessel wall is bulging, it is called a:
a) fusiform aneurysm.
b) saccular aneurysm.
c) lobar arterial tumor.
d) unilobar arterial tumor.
Fusiform aneurysm
A potentially fatal complication of closed chest trauma is:
a) aneurysm.
b) aortic stenosis.
c) traumatic rupture of aorta.
d) aortic valve insufficiency.
Traumatic rupture of aorta
What is an aortic dissection?
a) Complete tear of arterial wall
b) Congenital anomaly in which the lumen is duplicated
c) Traumatic disruption of the aorta from the root at the junction of the left ventricle
d) Disruption of the intima allowing blood to flow between the layers of the wall
Disruption of the intima allowing blood to flow between the layers of the wall
What is a thrombus?
a) A piece of a blood clot that enters the bloodstream
b) An intravascular clot
c) Traumatic aortic dissection
d) A tear in the inner lining of the artery
An intravascular clot
What is an embolism?
a) A piece of a blood clot that enters the bloodstream
b) A clot inside a blood vessel
c) A tear in the lining of an artery
d) A weakness in an artery wall
A piece of a blood clot that enters the blood stream
An autoimmune disease that results from a reaction of a patient’s antibodies against antigens from a previous streptococcal infection is called:
a. infective endocarditis.
b. pericardial effusion.
c. infectious pericardial edema.
d. rheumatic fever.
Rheumatic fever
What structures are typically damaged by rheumatic fever?
a) Coronary arteries
b) Myocardium and endocardium
c) Red blood cells and blood platelets
d) Heart valves
Heart valves
Which of the following conditions are complications of rheumatic fever?
a) Mitral valve stenosis
b) Aortic valve insufficiency
c) Aortic valve stenosis
d) Mitral valve and aortic valve stenosis and Aortic valve insufficiency
Mitral valve and aortic valve stenosis and Aortic valve insufficiency
Which imaging modality is the most sensitive and specific noninvasive method for diagnosing mitral valve stenosis?
a. Chest radiography
b. Echocardiography
c. CT
d. MRI
Echocardiography
Which of the following might cause aortic valve insufficiency?
a) Syphilis and Infective endocarditis
b) Infective endocarditis and Deep vein thrombosis
c) Syphilis and Deep vein thrombosis
d) Deep vein thrombosis
Syphilis and Infective endocarditis
A disease in which the growth of nodules or vegetations on the heart valves is caused by deposits of bacteria or fungi is known as:
a. pericardial effusion.
b. infectious pulmonary edema.
c. infective endocarditis.
d. deep vein thrombosis.
Infective endocarditis
The accumulation of fluid in the membrane surrounding the heart is termed:
a) infective endocarditis
b) deep vein thrombosis
c) pericardial effusion
d) pulmonary edema
Pericardial effusion
Which of the following is a major source of fatal pulmonary emboli?
a) Pericardial effusion
b) Pulmonary edema
c) Deep vein thrombosis
d) Infective endocarditis
Deep vein thrombosis
Dilated and tortuous superficial veins of the leg are called:
a) varicose veins.
b) deep vein thrombosis.
c) vesiculitis.
d) aneurysms.
Varicose veins
Which of the following is a noninvasive technique used for diagnosis of deep vein thrombosis?
a. Venography
b. CT
c. MRI
d. Color-flow Doppler ultrasound
Color-flow Doppler ultrasound
All of the following are predisposing factors to the development of coronary artery disease except:
a. hypertension.
b. obesity.
c. congential defects
d. smoking
Congenital defects
How is cardiomegaly evaluated on a PA chest radiograph?
a) Measurement of the cardiothoracic ratio
b) Evaluation of the height of the right hemidiaphragm
c) Evaluation of the left hemidiaphragm
d) Cardiomegaly cannot be evaluated on a PA chest radiograph
Measurement of the cardiothoracic ratio
All of the following are causes of aortic stenosis, except:
a) rheumatic heart disease.
b) coronary artery disease.
c) idiopathic calcific stenosis.
d) congenital valvular deformity.
coronary artery disease
(T/F) Right-to-left shunts are the most common congenital cardiac lesions.
False
(T/F) Tetralogy of Fallot involves four abnormalities.
True
(T/F) The most common cause of cyanotic congenital heart disease is atrial septal defect.
False
(T/F) Rib notching demonstrated on chest radiographs is a characteristic of coarctation of the aorta.
True
(T/F) A fusiform aneurysm is a localized weakness that bulges out on only one side of the artery wall.
False
(T/F) A thrombus is a piece of an embolism that has broken free into the circulating bloodstream.
False
(T/F) Deep vein thrombosis is a primary source of pulmonary embolism.
True
(T/F) Regurgitation of blood through a heart valve means that blood is flowing backward from an opening that is too large or through cusps that do not close properly.
True
(T/F) Rheumatic fever is a primary cause of valvular disease.
True
