Muscles and Nerves of the Thigh

The video tutorial provides an in-depth look at the muscles of the thigh, focusing on the anterior compartment. It explains the arrangement of muscles into three compartments: anterior, medial, and posterior, each with distinct functions and nerve supplies. The anterior compartment, supplied by the femoral nerve, includes the quadriceps femoris group and the sartorius muscle. The tutorial details the origin, insertion, and actions of these muscles, emphasizing their roles in hip and knee movements.

Which nerve supplies the anterior compartment of the thigh?

• Obturator nerve

• Tibial nerve

• Sciatic nerve

• Femoral nerve

What is the common insertion point for the iliacus and psoas major muscles?

• Medial condyle of the femur

• Greater trochanter of the femur

• Lesser trochanter of the femur

• Lateral condyle of the femur

Which muscles are collectively known as the iliopsoas?

• Sartorius and gracilis

• Vastus medialis and vastus intermedius

• Rectus femoris and vastus lateralis

• Iliacus and psoas major

Which muscle in the quadriceps group originates from the pelvis?

• Vastus intermedius

• Rectus femoris

• Vastus medialis

• Vastus lateralis

What is the primary action of the vastus muscles?

• Flex the hip

• Extend the knee

• Adduct the thigh

• Rotate the leg

Which muscle group is responsible for extending the leg at the knee joint?

• Hamstrings

• Adductors

• Quadriceps femoris

• Gluteals

What is the role of the rectus femoris at the hip joint?

• Flex the hip

• Extend the hip

• Rotate the hip

• Adduct the hip

Where does the sartorius muscle insert?

• Posterior surface of the femur

• Medial surface of the proximal tibia

• Lateral surface of the proximal tibia

• Anterior surface of the femur

What is the function of the sartorius muscle at the hip joint?

• Rotate the hip

• Extend the hip

• Flex the hip

• Adduct the hip

Which nerve innervates the muscles that act on the knee joint in the anterior compartment?

• Tibial nerve

• Obturator nerve

• Femoral nerve

• Sciatic nerve