ALL EXAM REVISION QUESTIONS AND CORRECT ANSWERS
(ALREADY GRADED A+) (2024 UPDATE)
I) Superior border of greater trochanter of femur
N) Ventral rami of L5, S1, S2
A) Laterally rotates extended thigh, abducts flexed thigh at hip
Superior Gemellus - ANSWER- O) Ischial spine
I) Medial surface of greater trochanter of femur (via tendon of obturator internus)
N) Nerve to obturator internus (L5, S1)
A) Lateral rotation, thigh abduction with flexed hip, stabilizes head of femur in acetabulum
Inferior Gemellus - ANSWER- O) Ischial tuberosity
I) Medial surface of greater trochanter of femur (via tendon of obturator internus)
N) Nerve to quadratus femoris (L4/5, S1)
A) Lateral rotation, thigh abduction with flexed hip, stabilizes head of femur in acetabulum
Obturator internus - ANSWER- O) Posterior pelvic surface of obturator membrane, bony
boundaries of obturator foramen
I) Medial surface of greater trochanter of femur
N) Nerve to obturator internus (L5, S1)
, A) Lateral rotation of extended thigh, abducts flexed thigh, stabilization of hip joint
Obturator externus - ANSWER- O) Margins of obturator foramen, obturator membrane
I) Trochanteric fossa of femur
N) Obturator nerve
A) Lateral rotation of thigh, stabilizes head of femur within acetabulum
Quadratus femoris - ANSWER- O) Ischial tuberosity
I) Intertrochanteric crest of femur
N) Nerve to quadratus femoris (L4, L5, S1)
A) Lateral rotation, Stabilizes head of femur in acetabulum
Adductor Longus - ANSWER- O: body of pubis inferior to pubic crest
I: Middle third of linea aspera of femur
N: Anterior division of obturator nerve (L2, L3, L4)
A: Adducts hip joint
Adductor Brevis - ANSWER- O: Body and inferior ramus of pubis
I: Pectineal line and proximal part of linea aspera of femur
N: Anterior and posterior branches of obturator nerve (L3, L4)
A: Adducts and flexes the hip joint; assists balance