Muscle Mechanics of the Leg Explained

This video tutorial provides a comprehensive overview of the muscles in the leg, starting from the hip flexors like the psoas major and iliacus, moving through the Sartorius and Tensor Fasciae Latae, and detailing the quadriceps group. It then explores the gluteal muscles, including the gluteus maximus, medius, and minimus, as well as the lateral rotators. The tutorial continues with the hamstrings and adductor muscles, explaining their roles in leg movement. Finally, it covers the lower leg muscles, such as the tibialis anterior and gastrocnemius, highlighting their functions in dorsiflexion, plantar flexion, and inversion.

Which muscle is primarily responsible for flexion at the hip?

• Psoas major

• Vastus lateralis

• Biceps femoris

• Gluteus maximus

What is one of the functions of the Sartorius muscle?

• Flexion at the hip

• Abduction of the hip

• Medial rotation

• Extension at the knee

What is a function of the tensor fasciae latae?

• Lateral rotation

• Flexion at the knee

• Medial rotation

• Extension at the knee

Which muscle group is responsible for knee extension?

• Gluteal muscles

• Quadriceps femoris

• Adductors

• Hamstrings

What action is performed by the gluteus maximus?

• Flexion at the hip

• Flexion at the knee

• Extension at the hip

• Adduction of the hip

Which muscle is involved in hip abduction?

• Sartorius

• Biceps femoris

• Adductor longus

• Gluteus medius

What is the primary function of the hamstring muscles?

• Extension at the knee

• Flexion at the knee

• Medial rotation

• Adduction of the hip

Which muscle is responsible for adduction at the hip?

• Tensor fasciae latae

• Rectus femoris

• Adductor magnus

• Gluteus minimus

What is the function of the tibialis anterior?

• Lateral rotation

• Adduction

• Plantar flexion

• Dorsiflexion

Which muscle is involved in plantar flexion?

• Gastrocnemius

• Piriformis

• Tibialis anterior

• Sartorius