HSS 3305 MODULE 6 PRACTICE EXAM
QUESTIONS WITH VERIFIED ANSWERS
What is the function of heart valves?
Heart valves ensure unidirectional blood flow through the heart.
What are the names of the four heart valves?
Tricuspid valve, Pulmonary valve, Mitral (bicuspid) valve, Aortic valve.
Where is the tricuspid valve located?
Between the right atrium (RA) and right ventricle (RV).
What prevents backflow into the atria during ventricular contraction?
Atrioventricular (AV) valves.
What anchors the AV valves to the papillary muscles?
Chordae tendineae.
What is the location and function of the pulmonary valve?
Located in the pulmonary artery; prevents backflow into the RV from the lungs.
What is the structure of the mitral valve?
Composed of two flaps of tissue attached to chordae tendineae.
Where is the aortic valve found?
In the aorta, just as it leaves the left ventricle (LV).
What is aortic valve stenosis?
Narrowing of the aortic valve due to stiffening of the valve leaflets.
What are potential complications of untreated aortic stenosis?
Heart failure, angina, syncope, exertional dyspnea, and arrhythmias.
What is the significance of the 'lub-dub' heart sounds?
'Lub' is the closing of AV valves; 'dub' is the closing of pulmonary and aortic valves.
What is the clinical presentation of a patient with aortic valve insufficiency?
Progressive shortness of breath, elevated blood pressure, and heart murmurs.
What is the role of echocardiography in assessing heart valve function?
It can reveal valve thickening and insufficiency.
, What is the outcome of replacing severely thickened heart valves?
Improvement in symptoms and heart function.
What is the definition of coronary artery disease?
A condition characterized by the narrowing or blockage of coronary arteries.
What is heart failure?
A condition where the heart is unable to pump sufficiently to maintain blood flow.
What is the pathophysiology of critical tricuspid stenosis?
Severe venous hypertension and jugular venous distention following valve replacement.
What is the significance of jugular venous distention (JVD)?
It indicates elevated right atrial pressure.
What are the symptoms of aortic stenosis?
Shortness of breath, chest pain, and fainting spells.
What is the role of chordae tendineae?
They anchor the AV valves to the papillary muscles to prevent backflow.
What can cause aortic valve stenosis?
Stiffening of the valve leaflets due to age or rheumatic heart disease.
What is the role of cardiac catheterization in heart valve assessment?
It helps measure pressures within the heart chambers.
What is the expected recovery after valve replacement surgery?
Patients often experience significant symptom improvement.
What is the function of the coronary arteries?
They supply blood to the heart muscle.
What is the anatomical position of the mitral valve?
Between the left atrium (LA) and left ventricle (LV).
How does the heart ensure unidirectional blood flow?
Through the action of heart valves that open and close in response to pressure changes.
What causes the first heart sound 'lub'?
The closing of the AV valves.
QUESTIONS WITH VERIFIED ANSWERS
What is the function of heart valves?
Heart valves ensure unidirectional blood flow through the heart.
What are the names of the four heart valves?
Tricuspid valve, Pulmonary valve, Mitral (bicuspid) valve, Aortic valve.
Where is the tricuspid valve located?
Between the right atrium (RA) and right ventricle (RV).
What prevents backflow into the atria during ventricular contraction?
Atrioventricular (AV) valves.
What anchors the AV valves to the papillary muscles?
Chordae tendineae.
What is the location and function of the pulmonary valve?
Located in the pulmonary artery; prevents backflow into the RV from the lungs.
What is the structure of the mitral valve?
Composed of two flaps of tissue attached to chordae tendineae.
Where is the aortic valve found?
In the aorta, just as it leaves the left ventricle (LV).
What is aortic valve stenosis?
Narrowing of the aortic valve due to stiffening of the valve leaflets.
What are potential complications of untreated aortic stenosis?
Heart failure, angina, syncope, exertional dyspnea, and arrhythmias.
What is the significance of the 'lub-dub' heart sounds?
'Lub' is the closing of AV valves; 'dub' is the closing of pulmonary and aortic valves.
What is the clinical presentation of a patient with aortic valve insufficiency?
Progressive shortness of breath, elevated blood pressure, and heart murmurs.
What is the role of echocardiography in assessing heart valve function?
It can reveal valve thickening and insufficiency.
, What is the outcome of replacing severely thickened heart valves?
Improvement in symptoms and heart function.
What is the definition of coronary artery disease?
A condition characterized by the narrowing or blockage of coronary arteries.
What is heart failure?
A condition where the heart is unable to pump sufficiently to maintain blood flow.
What is the pathophysiology of critical tricuspid stenosis?
Severe venous hypertension and jugular venous distention following valve replacement.
What is the significance of jugular venous distention (JVD)?
It indicates elevated right atrial pressure.
What are the symptoms of aortic stenosis?
Shortness of breath, chest pain, and fainting spells.
What is the role of chordae tendineae?
They anchor the AV valves to the papillary muscles to prevent backflow.
What can cause aortic valve stenosis?
Stiffening of the valve leaflets due to age or rheumatic heart disease.
What is the role of cardiac catheterization in heart valve assessment?
It helps measure pressures within the heart chambers.
What is the expected recovery after valve replacement surgery?
Patients often experience significant symptom improvement.
What is the function of the coronary arteries?
They supply blood to the heart muscle.
What is the anatomical position of the mitral valve?
Between the left atrium (LA) and left ventricle (LV).
How does the heart ensure unidirectional blood flow?
Through the action of heart valves that open and close in response to pressure changes.
What causes the first heart sound 'lub'?
The closing of the AV valves.
