Heart Conditions and Valves Quiz

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Questions and Answers

What happens to the right atrium if the tricuspid valve becomes stenosed?

It loses blood supply.
It decreases in pressure.
It increases in size.
It becomes pressurized. (correct)

Which effect does the narrowing of the tricuspid valve have on the right ventricle?

The right ventricle pumps blood more efficiently.
The right ventricle fills with oxygen-rich blood.
The right ventricle is unable to fill at the appropriate rate with CO2 blood. (correct)
The right ventricle decreases in size.

What condition may lead to cyanosis due to changes in blood composition?

Increased pressure in the right atrium and regurgitation of blood. (correct)
Narrowing of the pulmonary artery.
Enhanced oxygenation in the lungs.
Decreased CO2 levels in the body.

What results from constriction of the tricuspid valve during the cardiac cycle?

Inability to properly oxygenate blood. (C) Signup and view all the answers

Which of the following best describes potential complications from tricuspid valve dilation?

Backward pressure onto veins and increased CO2 levels. (D) Signup and view all the answers

What is the primary consequence of a dilated pulmonary valve?

It prevents the proper closure, causing a constant blood flow to the lungs. (C) Signup and view all the answers

How does the process of blood cleanup occur in the capillaries of the lungs?

Oxygen is taken from arterioles and carbon dioxide is released into venules. (A) Signup and view all the answers

Which of the following statements about heart sounds is accurate?

S2 indicates the closing of the pulmonary valves. (C) Signup and view all the answers

What distinguishes dilation from stenosis in the context of heart conditions?

Dilation is less severe than stenosis. (D) Signup and view all the answers

What result does increased pressure on the lungs have due to a dilated pulmonary valve?

Increased rate of oxygenation. (C) Signup and view all the answers

What physiological event is represented by the sound S2 (Dub)?

Closure of the aortic and pulmonary valves (B) Signup and view all the answers

Which of the following statements correctly describes HDL and LDL?

HDL is responsible for reverse cholesterol transport. (C), LDL carries cholesterol from the liver to the body organs. (D) Signup and view all the answers

What can be a potential cause of low blood pressure?

Reduced salt intake (D) Signup and view all the answers

What is the primary consequence of a myocardial infarction (MI)?

Death of cardiac muscle due to insufficient blood supply (A) Signup and view all the answers

What condition may result from prolonged high blood pressure (hypertension)?

Enlarged heart over time (D) Signup and view all the answers

Flashcards

Valve Function

Valves open during diastole to allow blood flow. They prevent backflow.

Valve Narrowing (Stenosis)

A valve opening becomes too narrow, impeding blood flow.

Tricuspid Stenosis Effect

Narrowed tricuspid valve leads to increased right atrial pressure, reduced right ventricle filling, and reduced lung oxygenation.