<Li> The semitendinosus arises from the lower and medial impression on the tuberosity of the ischium, by a tendon common to it and the long head of the biceps femoris; it also arises from an aponeurosis which connects the adjacent surfaces of the two muscles to the extent of about 7.5 cm. from their origin . </Li> <Li> The semimembranosus arises from the lower and medial impression on the tuberosity of the ischium </Li> <P> Anterior compartment of thigh </P> <Ul> <Li> The rectus femoris muscle arises by two tendons: one, the anterior or straight, from the anterior inferior iliac spine; the other, the posterior or reflected, from a groove above the rim of the acetabulum . </Li> <Li> The sartorius muscle arises by tendinous fibres from the anterior superior iliac spine, </Li> </Ul>

Why does cartilage connect the two os coxae in the front