
Cardiology Flashcard

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1.
FLASHCARD QUESTION
Front
Which surface of the heart is located inferiorly?
Back
Inferior surface
Answer explanation
The inferior surface of the heart, also known as the diaphragmatic surface, is located at the bottom and faces downward. It is distinct from the anterior, septal, and lateral surfaces, making it the correct answer.
2.
FLASHCARD QUESTION
Front
Which valve is responsible for preventing backflow into the left atrium?
Back
Mitral/Bicuspid
Answer explanation
The mitral valve prevents backflow into the left atrium by closing when the left ventricle contracts. The tricuspid valve serves a similar function on the right side, but the question specifically asks about the left atrium.
3.
FLASHCARD QUESTION
Front
What is the function of the RCA in the heart?
Back
Supplies blood to the right atrium
Answer explanation
The RCA (Right Coronary Artery) primarily supplies blood to the right atrium, which is crucial for maintaining proper heart function. It does not supply the left atrium or left ventricle.
4.
FLASHCARD QUESTION
Front
Which coronary artery is known as the "widow maker"?
Back
LAD
Answer explanation
The LAD (Left Anterior Descending) artery is often referred to as the "widow maker" because a blockage here can lead to severe heart damage or sudden death, affecting a large area of the heart muscle.
5.
FLASHCARD QUESTION
Front
What is the role of papillary muscles in the heart?
Back
Prevent valve prolapse
Answer explanation
Papillary muscles anchor the heart valves via chordae tendineae, preventing valve prolapse during ventricular contraction. This ensures proper blood flow and prevents backflow, making 'prevent valve prolapse' the correct answer.
6.
FLASHCARD QUESTION
Front
Which layer of the heart muscle is the outermost? Options: Endocardium, Myocardium, Epicardium, Pericardium
Back
Pericardium
Answer explanation
The pericardium is the outermost layer surrounding the heart. It provides protection and anchors the heart within the chest cavity, while the endocardium and myocardium are inner layers of the heart muscle.
7.
FLASHCARD QUESTION
Front
What is inotropy related to in cardiac function?
Back
Force of contraction
Answer explanation
Inotropy refers to the force of contraction of the heart muscle. It directly affects how strongly the heart pumps blood, making 'Force of contraction' the correct answer, while heart rate, rhythm, and electrical conduction relate to other aspects of cardiac function.
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