Rectus Femoris - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The rectus femoris is a muscle in the anterior compartment of the thigh. It forms part of the quadriceps femoris muscle complex, and is the only muscle in this group to cross both the hip joint and the knee joints. Attachments: One head originates from the anterior inferior iliac spine and other from the supra-acetabular groove (of the ilium). The two heads converge into one tendon which inserts onto the patella via the quadriceps femoris tendon. The patella is then attached to the tibial tuberosity by the patella ligament. Actions: Extension of the knee joint and flexion of the hip joint. Innervation: Femoral nerve Blood Supply: Femoral artery and lateral femoral circumflex artery By TeachMeSeries Ltd (2026) Fig 1The muscles of the anterior thigh. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What is the rectus femoris muscle? The rectus femoris is a muscle located in the front compartment of the thigh and is a key component of the quadriceps femoris muscle group. It uniquely crosses both the hip and knee joints, enabling it to perform multiple functions. What are the attachments of the rectus femoris? The rectus femoris has two heads, one originating from the anterior inferior iliac spine and the other from the supra-acetabular groove of the ilium. These heads merge into a single tendon that attaches to the patella, which is further connected to the tibial tuberosity via the patella ligament. What actions does the rectus femoris perform? The rectus femoris is responsible for extending the knee joint and flexing the hip joint. This dual functionality makes it essential for activities such as walking and running. Which nerve innervates the rectus femoris? The rectus femoris is innervated by the femoral nerve. This nerve supplies the muscle with the necessary signals for contraction and movement. What is the blood supply to the rectus femoris? The rectus femoris receives its blood supply primarily from the femoral artery and the lateral femoral circumflex artery. This vascularisation is crucial for maintaining muscle health and function. Rate This Article