MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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tricuspid valve insufficiency
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mitral valve insufficiency
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ischemia of AVN
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paralysis of pectinate muscle
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necrosis of moderator band (septomarginal trabecula)
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Detailed explanation-1: -The circumflex artery branches off of the left coronary artery and supplies most of the left atrium: the posterior and lateral free walls of the left ventricle, and part of the anterior papillary muscle.
Detailed explanation-2: -Occlusion in the left circumflex artery ECG changes resemble those seen in posterior infarction due to occlusion in the RCA, namely ST-segment elevations in V7–V9 and reciprocal ST-segment depressions in V1–V3, along with high R-waves and positive T-waves in the same leads (V1–V3).
Detailed explanation-3: -It’s dangerous as it can obstruct or stop the flow of blood to major organs, such as the heart or brain. If a blood clot narrows one or more of the arteries leading to the heart, muscle pain known as angina can occur. If a blood clot blocks the arteries leading to part of the heart muscle, it will cause a heart attack.