Muscles of the Gluteal Region

Question 1

Name the Muscles of the Gluteal Region

Answer 1

Gluteus maximus
Gluteus medius
Gluteus minimus
Tensor fascia latae
Piriformis
Obturator internus
Gemelli, superior and inferior
Quadratus femoris

Question 2

Gluteus Maximus - Origin

Answer 2

Dorsal Ilium, Sacrum and Coccyx

Question 3

Gluteus Maximus - Insertion

Answer 3

Iliotibial tract (IT Band), which inserts into lateral condyle of tibia
Gluteal tuberosity of femur

Question 4

Gluteus Maximus - Innervation

Answer 4

Inferior Gluteal Nerve (L5, S1, S2)

Question 5

Gluteus Maximus - Action(s)

Answer 5

*Extends a flexed thigh (when rising from seated position or climbing stairs)
Stabilizes lateral knee

Question 6

Gluteus Medius - Origin

Answer 6

External surface of ilium (Superior Margin)

Question 7

Gluteus Medius - Insertion

Answer 7

Greater trochanter of femur (Lateral Surface)

Question 8

Gluteus Medius - Innervation

Answer 8

Superior Gluteal Nerve (L4, L5, S1)

Question 9

Gluteus Medius - Action(s)

Answer 9

Abduct and anterior portions MEDIALLY rotate hip joint

Keep pelvis level when opposite leg is elevated

Question 10

Gluteus Minimus - Origin

Answer 10

External surface of ilium (inferior to gluteus minimus)

Question 11

Gluteus Minimus - Insertion

Answer 11

Greater trochanter of femur (Anterior Surface)

Question 12

Gluteus Minimus - Innervation

Answer 12

Superior Gluteal Nerve (L4, L5, S1)

Question 13

Gluteus Minimus - Action(s)

Answer 13

Abduct and anterior portions MEDIALLY rotate hip joint

Keep pelvis level when opposite limb is elevated

Question 14

Tensor Fasciae Latae - Origin

Answer 14

Anterior superior iliac spine (ASIS)

Anterior part of iliac crest

Question 15

Tensor Fasciae Latae - Insertion

Answer 15

Iliotibial tract, which attaches to lateral condyle of tibia (Gerdy’s Tubercle)

Question 16

Tensor Fasciae Latae - Innervation

Answer 16

Superior Gluteal Nerve (L4, L5, S1)

Question 17

Tensor Fasciae Latae - Action(s)

Answer 17

Flexes hip joint

Acts with gluteus maximus to stabilize the extended knee joint

Question 18

Piriformis - Origin

Answer 18

Anterior surface of sacrum (2nd-4th Segments)

Question 19

Piriformis - Insertion

Answer 19

Greater trochanter of femur (Superior Border)

Question 20

Piriformis - Innervation

Answer 20

Branches of anterior rami of S1, S2

Question 21

Piriformis - Action(s)

Answer 21

Laterally Rotate and Abducts Thigh

Stabilizes Hip Joint

Question 22

Obturator Internus - Origin

Answer 22

Obturator membrane and bone around it on internal surface of pelvis

Question 23

Obturator Internus - Insertion

Answer 23

Trochanteric fossa of femur

Question 24

Obturator Internus - Innervation

Answer 24

Nerve to obturator internus (L5, S1)

Question 25

Obturator Internus - Action(s)

Answer 25

Laterally Rotates and Abducts thigh

Question 26

Gemelli, superior and inferior - Origin

Answer 26

Superior: ischial spine
Inferior: ischial tuberosity

Question 27

Gemelli, superior and inferior - Insertion

Answer 27

Trochanteric fossa of femur

Question 28

Gemelli, superior and inferior - Innervation

Answer 28

Superior: Same as Obturator Internus

Inferior: Same as Quadratus Femoris

Question 29

Gemelli, superior and inferior - Action(s)

Answer 29

Laterally Rotates and Abducts thigh

Question 30

Quadratus Femoris - Origin

Answer 30

Ischial tuberosity (Lateral Border)

Question 31

Quadratus Femoris - Insertion

Answer 31

Intertochanteric crest of femur (Quadrate Tubercle)

Question 32

Quadratus Femoris - Innervation

Answer 32

Nerve to quadratus femoris (L5, S1)

Question 33

Quadratus Femoris - Action(s)

Answer 33

Laterally rotates hip joint