Hip and Pelvis Myology

Question 1

Movements at hip joint

Answer 1

Flexion (120)
Psoas major, Iliacus, Sartorius Rectus Femoris
Extension (0-10)
Gluteus Maximus, Hamstring
Abduction (30-45)
Tensor Fascia Latae, Gluteus Medius, Gluteus Minimus, Sartorius
Adduction (30-45)
Adductor Longus, Adductor Magnus, Adductor Brevis, Gracilis, Pectineus
Medial Rotation (25-30)
Tensor Fascia Latae, Gluteus Medius, Gluteus Minimus, Gracilis, Adductors
Lateral rotation (45-60)
Gluteus Maximus, Piriformis, Sartorius

Question 2

Hip Flexion (TRIPS)

Answer 2

Main muscles:
* Tensor fascia latae (TFL)
* Rectus femoris
* Iliacus
* Psoas major
* Sartorius

Question 3

Hip extension (BAGGSS)

Answer 3

Main Muscles:
. Bicep femoris (long head)*
* Adductor magnus (posterior fibers)*
* Gluteus maximus
* Gluteus medius (posterior fibers)
* Semitendinosus*
* Semimembranosus*
ATTACHMENT TO ISCHIAL TUBEROSITY

Question 4

Hip Abduction

Answer 4

Main muscles:
* Gluteus maximus
* Gluteus medius
* Gluteus minimus
* Tensor Fascia Latae (TFL)
* Sartorius
* Piriformis (when hip is flexed)

Question 5

Hip Adduction

Answer 5

Hip adduction
* Main muscles:
* Adductor magnus
* Adductor longus
* Adductor brevis
* Pectineus
* Gracilis

Question 6

Medial View- 5 adductors for hip adduction

Answer 6

THREE LITTLE DUCKS PECKING IN THE GRASS

.ADDUCTOR LONGUS
* ADDUCTOR BREVIS
* ADDUCTOR MAGNUS
* PECTINEUS
* GRACILIS

Question 7

Hip medial rotation

Answer 7

Main muscles:
* Gluteus medius (anterior fibers)
* Gluteus minimus

• Gracilis
• Adductor magnus
• Adductor longus
• Adductor brevis
• Pectineus
• Tensor fascia latae

Question 8

Hip Lateral Rotation

Answer 8

Main muscles:
* Gluteus maximus
* Gemellus superior
* Obturator internus
* Gluteus medius (posterior fibers)
* Gemellus inferior
* Obturator externus
* Piriformis
* Psoas major
* Iliacus
* Sartorius
* Quadratus femoris

Question 9

hamstrings

Answer 9

❖Biceps Femoris ❖Semimembranosus ❖Semitendinosus

Actions ❖Knee flexion ❖Hip extension ❖Knee Rotation ❖Medial (ST, SM) ❖Lateral (BF)

Question 10

gluteus maximus

Answer 10

Origin ❖Posterior gluteal line of ilium ❖Posterior iliac crest ❖Lateral / posterior aspect of sacrum and coccyx

Insertion ❖Iliotibial band and gluteal tuberosity of femur

Action ❖Hip extension ❖External rotation ❖Abduction

Question 11

Tensor Fascia Latae

Answer 11

Origin: ❖Anterior iliac crest, posterior to ASIS

Insertion: ❖Iliotibial band

Action: ❖Abduction ❖Internal rotation ❖Flexion

Question 12

gluteus medius

Answer 12

Origin: ❖Gluteal surface of the ilium between posterior and anterior gluteal lines (just below iliac crest)

Insertion: ❖Lateral aspect of the greater trochanter

Action: ❖Abduction ❖External rotation (posterior fibers) ❖Internal rotation (anterior fibers)

Question 13

gluteus minimus

Answer 13

Origin: ❖Gluteal surface of the ilium between anterior & inferior gluteal lines

Insertion: ❖Anterior aspect of the greater trochanter

Action: ❖Abduction ❖Internal rotation