Thigh Muscles/Ligaments & Hip Rotators

Question 1

Fascia

Answer 1

Connective tissue that runs throughout the body to provide structure and support. (Some parts of the body’s fascia are named)

Question 2

Fascia of the thigh is called the _______________.

Answer 2

Fascia Lata

Question 3

Fascia Lata

Answer 3

Connective tissue that invests throughout the thigh and surrounds the thigh muscles in a dense tubular sheath

Question 4

Iliotibial Band

Answer 4

-Fascia Lata thickens laterally - this very strong part of the fascia lata is called the iliotibial band
-Attatches: superiorly to the tubricle of the iliac crest and inferiorly to Gerdy’s Tubricle and Patella

Question 5

Psoas Major (Attachment)

Answer 5

-Superior/Proximal attachment: Sides of T-12-L4 vertebrae and the associated intervertebral disks
-Inferior/Distal attachment: Lesser trochanter of the femur

Question 6

Psoas Major (Action)

Answer 6

Action: Works with iliacus to flex the hip joint (when low back is fixed and femur is moving
Action: Flexes the lumbar spine (when femur is fixed and low back is moving)

Question 7

What is the prime mover for hip flexion?

Answer 7

Psoas Major

Question 8

Iliacus (Attachment)

Answer 8

Superior/Proximal attachment: Iliac Fossa
Inferior/Distal attachment: Lesser Trochanter

Question 9

Iliacus (Action)

Answer 9

-Action: Works with Psoas Major to flex the hip joint (when pelvis is fixed and Femur is moving)
-Action: Pulls the hip bone anteriorly (when Femur is fixed and Pelvis is moving)

Question 10

Gluteus Maximus (Attachment)

Answer 10

Superior/Proximal attachment: External and posterior surface of the ilium, posterior surface of the sacrum and coccyx, sacrotuberous ligament
Inferior/Distal attachment: 3/4 of the fibres attach into the iliotibial band, 1/4 of the fibres attach to the gluteal tuberosity

Question 11

Gluteus Maximus (Action)

Answer 11

Action: Hip joint extension (Prime Mover)
Action: Hip joint lateral rotation
Action: Hip abduction

Question 12

What is the prime mover for hip extension?

Answer 12

Gluteus Maximus

Question 13

What is the prime mover for hip abduction?

Answer 13

Gluteus Medius

Question 14

Gluteus Medius (Pelvic Deltoid) (Attachment)

Answer 14

-Superior/Proximal attachment: external Illium (anterior 2/3rds)
-Inferior/Distal attachment: Lateral surface of the Greater Trochanter

Question 15

Gluteus Medius (Pelvic Deltoid) (Action)

Answer 15

-Action: Hip joint abduction (Prime Mover)
-Action: Anterior Fibres - hip joint flexion and medial rotation
-Action: Posterior Fibres - hip joint extension and lateral rotation

Question 16

What muscle is responsible for pelvic support during weight bearing?

Answer 16

Gluteus Medius

Question 17

Weakness in muscles results in __________________.

Answer 17

Trendelenburg Gait

Question 18

Gluteus Minimus (Attachment)

Answer 18

-Superior/Proximal attachment: External Ilium (deep to gluteus medius)
-Inferior/Distal attachment: Anterior surface of the Greater Trochanter

Question 19

Gluteus Minimus (Action)

Answer 19

-Action: Hip joint abduction
-Action: Hip joint flexion
-Action: Hip joint medial rotation

Question 20

Tensor Fascia Lata (TFL) (Attachment)

Answer 20

-Superior/Proximal attachment: Outer ASIS
-Inferior/Distal attachment: Iliotibial Band (Approx.1/3rd down the thigh)

Question 21

Tensor Fascia Lata (TFL) (Action)

Answer 21

-Action: Hip joint flexion
-Action: Hip joint abduction
-Action: Hip joint medial rotation

Question 22

Piriformis (Attachment)

Answer 22

-Superior/Proximal attachment: Anterior Sacrum travelling through the Greater Sciatic Notch to the…..
-Inferior/Distal attachment: Posteromedial aspect of the Greater Trochanter

Question 23

Piriformis (Action)

Answer 23

-Action: Hip joint lateral rotation (in anatomical position)
-Action: Hip joint abduction - *When hip is flexed up to approx. 60degrees
-Action: Hip joint medial rotation - *When hip is flexed greater than 60degrees

Question 24

Gemellus Superior (Action)

Answer 24

Action: Hip joint lateral rotation

Question 25

Obturator Internus (Action)

Answer 25

Hip joint lateral rotation

Question 26

Gemellus Inferior (Action)

Answer 26

Hip joint lateral rotation

Question 27

Obturator Externus (Action)

Answer 27

Hip joint lateral rotation

Question 28

Quadratus Femoris (Attachment)

Answer 28

Superior/Proximal attachment: Lateral Ischial Tuberosity Inferior/Distal attachment: Interochanteric crest

Question 29

Quadratus Femoris (Action)

Answer 29

Hip joint lateral rotation

Question 30

Very strong part of the fascia lata is called the_______________.

Answer 30

Iliotibial Band