LE Myology

Question 1

Gluteus Maximus M. Origin

Answer 1

1. ilium posterior to posterior gluteal line
2. dorsal sacrum and coccyx
3. sacrotuberous Ligament

Question 2

Gluteus Maximus M. Insertion

Answer 2

1. gluteal tuberosity

2. Lateral tibial condyle via iliotibial band

Question 3

gluteus maximus M. action

Answer 3

1. extend thigh

2. assist in lateral rotation

Question 4

gluteus maximus m. innervation

Answer 4

inferior gluteal nerve

Question 5

gluteus maximus blood supply

Answer 5

1. superior gluteal artery

2. superficial inferior gluteal artery

Question 6

gluteus medius m. origin

Answer 6

ilium between anterior and posterior gluteal lines

Question 7

gluteus medius insertion

Answer 7

lateral aspect of greater trochanter of femur

Question 8

gluteus medius action

Answer 8

abduct and medially rotate thigh

Question 9

gluteus medius innervation

Answer 9

superior gluteal nerve

Question 10

gluteus medius artery

Answer 10

superior gluteal artery

Question 11

gluteus minimus origin

Answer 11

ilium between anterior and inferior gluteal lines

Question 12

gluteal minimus insertion

Answer 12

anterior aspect of greater trochanter of femur

Question 13

gluteal minimus action

Answer 13

abduct and medially rotate thigh

Question 14

gluteus minimus nerve

Answer 14

superior gluteal nerve

Question 15

gluteus minimus m. blood supply

Answer 15

superior gluteal a.

Question 16

tensor fascia lata m. origin

Answer 16

anterior superior iliac spine

anterior aspect iliac crest

Question 17

tensor fascia lata m. insertion

Answer 17

IT tract

lateral tibial condyle via the IT tract

Question 18

tensor fascia lata m. action

Answer 18

abduct and medially rotate and flex thigh

maintains extended leg

Question 19

tensor fascia lata m. nerve

Answer 19

superior gluteal n.

Question 20

tensor fascia lata m. blood supply

Answer 20

lateral circumflex a.

Question 21

3 muscles that abduct and medially rotate thigh

Answer 21

1. gluteus medius m.
2. gluteus minimus m.
3. tensor fascia lata m.

Question 22

laterally rotate and extend thigh

Answer 22

1. prirformis m.

2. superior gemellus m.

Question 23

piriformis origin

Answer 23

anterior surface of sacrum (S2-4)

sacrotuberous l.

Question 24

piriformis insertion

Answer 24

superior aspect greater trochanter of femur

Question 25

action of piriformis

Answer 25

laterally rotate extended thigh
abduct flexed thigh
stabilize femoral head in acetabulum

Question 26

piriformis innervation

Answer 26

nerve to the piriformis

Question 27

blood supply to piriformis

Answer 27

inferior gluteal A. and lateral sacral a.

Question 28

superior gemellus m. origin and insertion

Answer 28

origin: ischial spine
insertion: medial aspect greater trochanter of femur

Question 29

superior gemellus m. action

Answer 29

1. laterally rotate extended thigh
2. abduct flexed thigh
3. stabilize femoral head in acetabulum

Question 30

superior gemellus m. innervation

Answer 30

nerve to the obturator internus m.

Question 31

superior gemellus m. blood supply

Answer 31

inferior gluteal a.

Question 32

inferior gemellus m. origin and insertion

Answer 32

ischial tuberosity

medial aspect of greater trochanter of femur

Question 33

inferior gemellus m. action

Answer 33

laterally rotate extended thigh
abduct flexed thigh
stabilize femoral head in acetabulum

Question 34

inferior gemellus m. innervation

Answer 34

n. to the quadratus femoris m.

Question 35

inferior gemellus m. blood supply

Answer 35

inferior gluteal a.

Question 36

quadratus femoris m. innervation

Answer 36

n. to the quadratus femoris m.