Hip Flexors EXPLAINED Iliopsoas & Other Hip Flexors

The video tutorial explores hip flexion, focusing on the iliopsoas muscle group, which includes the psoas major and iliacus. It details their anatomy, functions, and innervation. The tutorial also covers other muscles involved in hip flexion, such as the rectus femoris, sartorius, and tensor fascia lata, and explains their roles in hip flexion up to and beyond 90 degrees.

What is the primary function of the iliopsoas muscle group?

• Hip extension

• Hip flexion

• Knee flexion

• Ankle dorsiflexion

Which vertebral bodies are primarily associated with the origin of the psoas major?

• C1 through C5

• T1 through T5

• T12 through L5

• L1 through L5

What is the insertion point of the combined tendon of the psoas major and iliacus?

• Medial epicondyle of the femur

• Lesser trochanter of the femur

• Lateral condyle of the femur

• Greater trochanter of the femur

Which nerve innervates the iliacus muscle?

• Sciatic nerve

• Obturator nerve

• Femoral nerve

• Tibial nerve

Which muscle is not part of the iliopsoas group but contributes to hip flexion?

• Biceps femoris

• Gastrocnemius

• Rectus femoris

• Gluteus maximus

What happens to the rectus femoris, sartorius, and tensor fascia lata muscles when the hip is flexed beyond 90 degrees?

• They stabilize the knee

• They become more effective

• They start to extend the hip

• They reach active insufficiency

Which muscle group is primarily responsible for hip flexion beyond 90 degrees?

• Adductors

• Iliopsoas

• Hamstrings

• Quadriceps