which area of the heart receives its blood supply from the left circumflex artery
Coronary circulation The anterolateral papillary muscle more frequently receives two blood supplies: left anterior descending (LAD) artery and the left circumflex artery (LCX).[4] It is therefore more frequently resistant to coronary ischemia (insufficiency of oxygen-rich blood). On the other hand, the posteromedial papillary muscle is usually supplied only by the PDA.[4] This makes the posteromedial papillary muscle significantly more susceptible to ischemia. The clinical significance of this is that a myocardial infarction involving the PDA is more likely to cause mitral regurgitation.
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Electrocardiography Leads I, II and III are called the limb leads. The electrodes that form these signals are located on the limbs â€“ one on each arm and one on the left leg.[25][26][27] The limb leads form the points of what is known as Einthoven's triangle.[28]
Inferior vena cava The corresponding vein that carries deoxygenated blood from the upper half of the body is the superior vena cava.