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.
Voltage Detectors and Voltage Detecting Systems. Voltage detectors and voltage detecting systems are used to verify the presence (âVoltage Presentâ) and absence (âNo Voltage Presentâ) condition in medium voltage switchgears, electrical equipment or of work places when working under voltage. The absence of voltage on disconnected switchgear parts can be verified by: 1  Voltage detector types: FL-I or Comet BL-I/BL-A/BS-I/BS-A. 2  Capacitive voltage detecting systems (pluggable VDS): HR-ST, LRM-ST, ORION. 3  Fixed installed capacitive voltage detecting systems (integrated VDS): WEGA models.