The degree of displacement of the fragments depends upon the extent to which the expansion of the quadriceps tendon is lacerated.
The tendon of the quadriceps femoris, at once drew the patella at least two inches above its normal position.
Avulsion of the tuberosity of the tibia occasionally occurs in youths, from violent contraction of the quadriceps—as in jumping.
quadriceps very weak; does not react to electrical stimulation.
On relaxing the quadriceps, the fragments may be approximated more or less completely.
A further cause of disability, following upon sprains of the knee, is wasting of the quadriceps muscle.
Upon tapping, the quadriceps tendon caused a brisk marked contraction of thigh muscles, followed by mild clonus.
The knee-joint is filled with blood and synovia, which usually extend into the bursa under the quadriceps.
The quadriceps femoris is usually ruptured close to its insertion into the patella, in the attempt to avoid falling backwards.
The chief physiological antagonistics of the glutei are the quadriceps femoris and tensor fascia lata.
quadriceps quad·ri·ceps (kwŏd'rĭ-sěps')
The large four-part extensor muscle at the front of the thigh. adj.
Having four heads, said of certain muscles.