The knee joint functions as a stabilizer for the lower extremity during weight bearing and allows large range of motion for various functional activities. The two primary articulations of the knee joint are the tibiofemoral joint and the patellofemoral joint.
1. electrocardiogram recorded between one limb and two other limbs. The augmented leads are designated aVF, aVL, and aVR for recordings made between the foot (left), left arm, and right arm, respectively, and the other two limbs. The definition information for augmented lead is provided by Stedman's.
Overview of the separate ECG leads. The lead with ST segment elevation 'highlights' the infarct. An infarction of the inferior wall will result in ST segment elevation in leads II, III and AVF. A lateral wall infarct results in ST segment elevation in leads I and AVL. An Anterior wall infarct results in ST segment elevation in the precordial leads.