Anatomy Of The Rectus Femoris Muscle - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim’s educational animated video describes the anatomy of the Rectus Femoris muscle - Quadriceps muscle.

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Anatomy of the Rectus Femoris Muscle
The rectus femoris is the anterior muscle of the quadriceps femoris. The quadriceps femoris is a group of four muscles on the anterior thigh. The rectus femoris muscle lies in front of the vasti muscles. The rectus femoris muscle arises from the pelvis, the other muscles of the quadriceps arise from the femur. The rectus femoris has two heads originating from the pelvis: the straight head and the reflected head. The straight head arises from the anterior inferior iliac spine of the pelvis. The reflected head originates from a groove superior to the acetabulum. The rectus femoris muscle is inserted into the superior border of the patella through the quadriceps common tendon. This muscle flexes the thigh at the hip, and it extends the knee. This muscle flexes the thigh at the hip and it extends the knee. If the muscle crosses the hip anteriorly, then it flexes the hip joint. This muscle flexes the thigh at the hip, and it extends the knee. This function advances the lower extremity in walking. The rectus femoris muscle helps in kicking the ball with sports such as soccer, and it could be injured during this function. Tears or strains of the rectus femoris muscle can occur and can be an acute process from forcible eccentric contraction of the rectus femoris muscle. These injuries are usually more distal on the thigh or near the knee. In adolescent patients, there may be an avulsion fracture of the anterior inferior iliac spine because it is weak. In adolescents, if you see a piece of bone near the hip joint, this is a sign of pulled rectus femoris muscle. Treatment is usually rest with crutches, not surgery.

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