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Where is the aortic area located?

Right 2nd intercostal space along the sternal border (correct)

4th intercostal space at left sternal border

Left 2nd intercostal space along the sternal border

Left 5th intercostal space, 1cm medial to mid-clavicular line

What primarily causes the first heart sound (S1)?

Contraction of the atrium

Vibrations due to blood ejection

Closure of the mitral and tricuspid valves (correct)

Closure of the aortic valve

Which heart sound is best heard at the apex of the heart?

Second heart sound (S2)

Third heart sound

Fourth heart sound

First heart sound (S1) (correct)

Which statement is true regarding the second heart sound (S2)?

It is louder and higher-pitched than S1 Signup and view all the answers

What is the frequency range of the first heart sound (S1)?

30-50 cycles/sec Signup and view all the answers

Which heart sound is rarely heard with a stethoscope?

Fourth heart sound Signup and view all the answers

What causes the second heart sound (S2) primarily?

Closure of the aortic and pulmonary valves Signup and view all the answers

What is the characteristic duration of the first heart sound (S1)?

0.14 seconds Signup and view all the answers

What is the primary function of the left ventricle?

Pumps oxygen-rich blood to the body through the aorta Signup and view all the answers

Which valve regulates blood flow from the right atrium to the right ventricle?

Tricuspid valve Signup and view all the answers

What type of tissue is responsible for generating the rhythm of the heart?

Pacemaker tissue Signup and view all the answers

Which of the following correctly describes the role of chordae tendineae?

Prevent inversion of the heart valves during contraction Signup and view all the answers

What causes the first heart sound (Lub) during auscultation?

Closure of the AV valves Signup and view all the answers

Which chamber of the heart receives mixed venous blood?

Right atrium Signup and view all the answers

What provides the structural support for the heart's valves?

Fibrous skeleton Signup and view all the answers

What is the purpose of the pulmonary valve?

Regulates blood flow from the right ventricle to the pulmonary artery Signup and view all the answers

Untitled Quiz

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Questions and Answers

Where is the aortic area located?

What primarily causes the first heart sound (S1)?

Which heart sound is best heard at the apex of the heart?

Which statement is true regarding the second heart sound (S2)?

What is the frequency range of the first heart sound (S1)?

Which heart sound is rarely heard with a stethoscope?

What causes the second heart sound (S2) primarily?

What is the characteristic duration of the first heart sound (S1)?

What is the primary function of the left ventricle?

Which valve regulates blood flow from the right atrium to the right ventricle?

What type of tissue is responsible for generating the rhythm of the heart?

Which of the following correctly describes the role of chordae tendineae?

What causes the first heart sound (Lub) during auscultation?

Which chamber of the heart receives mixed venous blood?

What provides the structural support for the heart's valves?

What is the purpose of the pulmonary valve?

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