Gluteal region and posterior thigh

Which of the following about gluteal region muscles is correct?

• Gluteus maximus, medius & minimus are innervated by superior gluteal nerve (L4-S1).

• All of them participates in medial rotation of thigh.

• Piriformis travels through the lesser sciatic notch and attaches to the lesser trochanter of femur.

• Gluteus minimus lies anterior to the gluteus maximus.

• Gluteus medius & minimus of standing limb contract to stabilize the pelvis the when the other limb is moving.

What is the role of piriformis in movements of the hip joint?

• Laterally rotate the extended thigh

• Adduct the flexed thigh

• Medially rotate the extended thigh

• Abduct the flexed thigh

• Stabilize the femoral head in acetabulum

Account for the waddling gait in the Trendelenberg test.

Which of the followings pass below the piriformis muscle?

• superior gluteal nerve

• pudendal nerve

• sciatic nerve

• posterior femoral cutaneous nerve

• internal pudendal artery

The internal iliac artery gives rise to

• inferior gluteal artery

• internal pudendal artery

• superior gluteal artery

• deep artery of thigh

• lateral circumflex femoral artery

What are the roots of sciatic nerve?

• L4-S1

• L5-S2

• S1-S3

• S2-S4

• L4-S3

What are the roots of superior gluteal nerve?

• L4-S1

• L5-S2

• S1-S3

• S2-S4

• L4-S3

What are the roots of inferior gluteal nerve?

• L4-S1

• L5-S2

• S1-S3

• S2-S4

• L4-S3

Which of the followings are innervated by the sciatic nerve?

• biceps femoris

• semitendinosus and semimembranosus

• skin on the anteromedial aspect of knee, leg & foot

• adductor brevis & longus

• obturator externus

Which of the following is innervated by both sciatic nerve and obturator nerve?

• biceps femoris

• semitendinosus and semimembranosus

• gastrocnemius

• pectineus

• adductor magnus