The femur has a rough posterior ridge used for muscle attachment called the?

The femur has a rough posterior ridge used for muscle attachment called the?

• A. Linea aspera
• B. Crista intertrochanterica
• C. Greater trochanter
• D. Condylus lateralis femoris

Answer: (A)

The line of attachment on the femur is the linea aspera. It’s a rough, prominent ridge along the posterior shaft, exactly where strong thigh muscles anchor. This rough surface provides an excellent grip for tendons, so muscles like the adductors, parts of the quadriceps (such as vastus medialis and vastus lateralis), and the short head of the biceps femoris attach there. The other features are in different areas: the crist a intertrochanterica is a crest near the hip region, the greater trochanter is a large bump at the top of the femur, and the condylus lateralis femoris is at the knee end.

The line of attachment on the femur is the linea aspera. It’s a rough, prominent ridge along the posterior shaft, exactly where strong thigh muscles anchor. This rough surface provides an excellent grip for tendons, so muscles like the adductors, parts of the quadriceps (such as vastus medialis and vastus lateralis), and the short head of the biceps femoris attach there. The other features are in different areas: the crist a intertrochanterica is a crest near the hip region, the greater trochanter is a large bump at the top of the femur, and the condylus lateralis femoris is at the knee end.