APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The semitendinosus extends the hip and flexes the knee.

Detailed explanation-2: -Thus the rectus femoris received its name because it runs straight down the thigh. It is a two way acting muscle as it crosses over the hip and knee joint; therefore, it functions to extend the knee and also assists iliopsoas in hip flexion. It is thus also a hip flexor.

Detailed explanation-3: -Rectus femoris: This muscle has two heads, originating at your hip bone and pelvis. It stretches down to your knee cap. It’s the only quad muscle that spans the hip joint and knee joint. Vastus intermedius: This muscle lies in the middle of your thigh, beneath the rectus femoris.