Anatomy of the Quadriceps Muscles Home -> Advanced Training -> Muscular Anatomy -> Quadricep Anatomy Anatomy Chart courtesy of FCIT The Quadriceps are a group of four muscles that sit on the anterior or front aspect of the thigh. They are the Vastus Medialis, Intermedius and Lateralis and finally the Rectus Femoris. The Quadriceps attach to the front of the tibia and originate at the top of the femur. The exception to this rule is the Rectus Femoris which actually crosses the hip joint and originates on the pelvis. In this diagram, the Vastus Intermedius and Rectus Femoris overlap. Functions The function of the Quadriceps as a whole is to extend the knee (straighten the knee). The Rectus Femoris functions to extend the knee but also acts as a hip flexor because it crosses the hip joint. Exercises Exercises that work the Quadriceps include: Leg extensions Leg press Lunges Squats Here is a list of unique exercises and articles for the quadriceps that have been published in our monthly training newsletter "BetterU News" and on our membership site Powerful Training Secrets Free Trial area (these links will open in new windows). Backwards Treadmill Running and Walking for the Quads Incline Dumbell Lunges Leg Press Curl Holds Secret Training Tip #120 - My VERY Favorite Leg Exercise (I Like It Even More Than Barbell Squats For Working The Thighs HARD!) Secret Training Tip #551 - 10 Unique and Powerful Tips For Taking Your Barbell Squats To The Next Level and Beyond! Secret Training Tip #321 - Squatting With Your Core - This Never-Before-Seen Technique Can Make You Stronger in the Squat Instantly! Training Equipment Review - The Manta Ray - Is It a Squatters Dream Come True? You Don't Know Squat About Squats Secret Training Tip #881 - Suitcase-Style One Arm Deadlifts The "Sting Ray" For Front Squats - Training Equipment Review