Anatomy, Physiology, and Disorders of
the Cardiovascular System Questions and
Correct Answers/ Latest Update / Already
Graded
What is the approximate size of the heart?
Ans: About the size of a fist.
Where is the heart located?
Ans: Within the mediastinum.
How much blood does the heart pump daily?
Ans: 1000 gallons.
How many chambers does the heart have?
Ans: Four chambers.
What is the location of the apical pulse?
Ans: 5th intercostal mid-clavicular line.
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What is the pathway of deoxygenated blood through the heart?
Ans: Veins → superior/inferior vena cava → right atrium →
tricuspid valve → right ventricle → pulmonary artery → lungs.
What is the pathway of oxygenated blood through the heart?
Ans: Lungs → pulmonary veins → left atrium → bicuspid/mitral
valve → left ventricle → aortic valve → aorta → into the body.
What is the unique characteristic of veins and arteries in the heart
compared to the rest of the body?
Ans: Veins in the heart carry clean oxygenated blood, while
arteries carry dirty deoxygenated blood.
Where is the tricuspid valve located?
Ans: Between the right atrium and right ventricle.
What is the function of the pulmonary semilunar valve?
Ans: Located between the right ventricle and pulmonary
arteries.
What is the role of the bicuspid/mitral valve?
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Ans: Located between the left atrium and left ventricle.
What does the opening and closing of the AV valves create?
Ans: The characteristic 'Lubb' sound (S1).
What sound is produced by the opening and closing of the aortic and
pulmonary semilunar valves?
Ans: The characteristic 'Dubb' sound (S2).
What does S3 heart sound indicate?
Ans: Congestive heart failure (CHF) or regurgitation.
What does S4 heart sound resemble?
Ans: The rhythm of 'Tennessee, Mississippi, horse galloping.'
What is a pulse deficit?
Ans: When the apical and radial pulse do not match.
What are the three layers of heart tissue?
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