Gracilis muscle (3D)

The tutorial explores the functions of the gracilis muscle, a part of the medial compartment of the thigh. It details the anatomy, nerve supply, and the muscle's role in movements at the hip and knee joints. The gracilis is involved in thigh flexion, adduction, knee flexion, and internal rotation. The video uses a model to demonstrate these movements, emphasizing the muscle's contribution to everyday activities like climbing stairs and crossing legs.

Which group of muscles does the gracilis belong to?

• Extensor group

• Flexor group

• Adductor group

• Rotator group

What nerve supplies the gracilis muscle?

• Sciatic nerve

• Obturator nerve

• Tibial nerve

• Femoral nerve

Where does the gracilis muscle insert?

• Lateral surface of the tibia

• Medial surface of the tibia

• Anterior surface of the femur

• Posterior surface of the fibula

Which joints are moved by the gracilis muscle?

• Hip and ankle

• Knee and ankle

• Hip and knee

• Shoulder and elbow

What movement does the gracilis muscle facilitate at the hip joint?

• Rotation and abduction

• Flexion and adduction

• Flexion and extension

• Extension and abduction

Which movement is NOT performed by the gracilis muscle at the knee joint?

• Extension

• Internal rotation

• Flexion

• Adduction

What is the role of the gracilis muscle in internal rotation?

• Rotates the arm towards the midline

• Rotates the leg towards the midline

• Rotates the leg away from the midline

• Rotates the arm away from the midline