The quadriceps femoris is the most voluminous muscle of the human body. From a sporting point of view, it is an extraordinarily important muscle, but it is often subject to trauma due to the stress it receives. The quadriceps is essential for daily activities, such as climbing stairs or getting u...

The thigh muscles subdivide into the anterior, medial, and posterior compartments. The function of the anterior compartment muscles is to extend the lower limb at the knee joint. The innervation of the anterior compartment of the thigh is from the femoral nerve, which originates from spinal roots L2...

The rectus femoris is the anterior thigh compartment's most superficial and nearly vertically oriented muscle. This bipennate structure is a component of the quadriceps muscle complex, one of the knee's most important dynamic stabilizers.[1] The rectus femoris is also known as the "kicking muscle" f...

Most descriptions of the extensor mechanism of the knee do not take into account its complexity and variability. The quadriceps femoris insertion into the patella is said to be through a common tendon with a three-layered arrangement: rectus femoris (RF) most superficially, vastus medialis (VM) and ...