The cycle continues as the mass vibrates back and forth about a fixed position. The springs inside of a bed mattress, the suspension systems of some cars, and bathroom scales all operated as a mass on a spring system. In all the vibrating systems just mentioned, damping is clearly evident.
[Continued from above] . . . Contraction of the quadriceps group extends the leg at the knee and flexes the thigh at the hip. The hamstring muscle group extends across the posterior surface of the thigh from the ischium of the pelvis to the tibia of the lower leg.
The deep fascia of the lower limb is called the fascia lata in the thigh and the crural fascia in the leg. These have the following specializations: fascia lata: iliotibial tract: a thickening of the fascia lata that stretches from the tubercle of the crest of the ilium to attach to the lateral condyle of the tibia. Identify the muscles of the anterior and medial thigh, including their nerve and vascular supply. 2  Describe their role in locomotion. 3  Predict what nerve or nerves are involved and the probable level of the injury, given a loss of function and/or cutaneous sensation involving the anterior and medial thigh regions.