LE Lecture 19- Exam 3

Question 1

glute max

Answer 1

P: Sacrum (dorsal surface, lateral part); Ilium (gluteal surface, posterior part); Thoracolumbar fascia; Sacrotuberous ligament
D: iliotibial tract and gluteal tuberosity
N: inferior gluteal L5-S2
A: Entire Muscle (Sagittal/coronal planes)
Extension, Externally Rotation; Upper Fibers- Abduction; Lower Fibers- Adduction

Question 2

glute medius

Answer 2

P: ilium
D: greater trochanter, lateral surface
N: superior gluteal L4-S1
A: Entire Muscle- Abducts hip and Stabilizes Pelvis; Anterior- Flexion and Internal Rotation; Posterior- Extension and External Rotation

Question 3

glute minimus

Answer 3

P: ilium
D: greater trochanter (anterolateral surface)
N: superior gluteal L4-S1
A: Entire Muscle- Abducts hip and Stabilizes Pelvis; Anterior- Flexion and Internal Rotation; Posterior- Extension and External Rotation

Question 4

piriformis

Answer 4

P: pelvic surface of the sacrum
D: apex of the greater trochanter of the femur
N: sacral plexus S1-S2 and superior gluteal L4-S1
A: ER, abduction, extension, stabilizes joint

Question 5

superior gemellus

Answer 5

P: ischial spine
D: medial surface, greater trochanter (jointly with obturator internus tendon)
N: sacral plexus L5-S1
A: ER, adduction, extension

Question 6

inferior gemellus

Answer 6

P: ischial tuberosity
D: medial surface, greater trochanter (jointly with obturator internus tendon)
N: sacral plexus L5-S1
A: ER, adduction, extension

Question 7

obturator internus

Answer 7

P: inner surface of obturator membrane and its bony boundaries
D: medial surface of greater trochanter
N: sacral plexus L5-S1
A: ER, adduction

Question 8

quadratus femoris

Answer 8

P: lateral border of ischial tuberosity
D: intertrochanteric crest of femur
N: Sacral Plexus L5-S1
A: ER, adduction

Question 9

which ligament could be strained with trunk rotation and lateral side-bending?

Answer 9

iliolumbar ligament

Question 10

which foramens are separated by the sacrospinous ligament?

Answer 10

greater and lesser sciatic foramens

Question 11

which mains nerves exit the great sciatic foramen?

Answer 11

sciatic and pudendal nerve