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.
This is the purpose of the earthing transformer, which could consist of a zig-zag winding, or a two winding star delta transformer where the star winding of correct voltage supplies an accessible neutral point when connected to the supply system.ower transformers are three-phase transformers used in the electricity supply system. If the secondary is star (wye) connected, it is necessary to earth (ground) the star poi â¦ nt (neutral point) because an unearthed star point could result in a 'floating neutral', which could cause unbalanced phase voltages.