Quadriceps muscles: Learn about the four

Learn about the four muscles that cover the front and sides of your thighs, their structure, function, and common injuries. The quadriceps help you straighten your knee, stabilize your kneecap, and move in bed. Learn about the quadriceps femoris, the most voluminous muscle of the human body, consisting of four sub-components: rectus femoris, vastus lateralis, vastus medialis and vastus intermedius. Find out how it acts as a hip flexor and a knee extensor, and what are the common clinical problems and adaptations of this muscle in different diseases. The quadriceps , commonly known as the "quads," are a group of four large muscles located on the anterior (front) aspect of the thigh. [2] These muscles are primarily responsible for extending the knee joint and play a vital role in activities such as walking, running, jumping, and climbing. The quadriceps consist of four individual muscles : the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. Collectively, they form one of the most powerful muscle groups in the body ... Your quadriceps are a group of four muscles located at the front of your thigh. These muscles work together to help you stand, walk, run, and move with ease. They're among the largest and ...