The quadriceps, often referred to as the "quads," are located on the front of the thigh.
The muscle group consists of four individual muscles:
Rectus Femoris: Positioned in the middle of the thigh, it crosses both the hip and knee joints.
Vastus Lateralis: Located on the outer side of the thigh.
Vastus Medialis: Found on the inner side of the thigh, close to the knee.
Vastus Intermedius: Situated under the rectus femoris, in the middle of the thigh.
Function:
The quadriceps are responsible for extending the knee joint and are crucial for activities like standing, walking, running, jumping, and squatting.
The rectus femoris also assists with hip flexion because it crosses the hip joint.
Example Movements:
Knee Extension: When you straighten your leg.
Jumping: Powerful knee extension for takeoff.
Squatting: The quadriceps assist in the controlled lowering and raising of the body.
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