11: Hip Muscles

Question 1

Answer 1

Biceps Femoris

O: Long head=ischial tuberosity

Short head=1/2 down linea aspera

I: fibular head, lateral condyle of tibia

A: knee flexion, hip extension, hip hyperextention, hip external rotation, hip adduction

HAMSTRINGS (most lateral)

Question 2

Answer 2

Semitendinosus

O: ischial tuberosity

I: upper medial part of shaft of tibia

A: knee flexion, hip extension, hip hyperextension, hip internal rotation, hip adduction

HAMSTRINGS (superficial)

Question 3

Answer 3

Semimembranosus

O: ischial tuberosity

I: posterior part of the medial condyle of tibia

A: knee flexion, hip extension, hip hyperextension, hip internal rotation, hip adduction

HAMSTRINGS (deep)

Question 4

Answer 4

Gracilis

O: inferior ramus and body of pubis

I: upper, anterior-medial surface of tibia

A: adduction, hip flexion, knee flexion

(most medial muscle of the thigh)

Question 5

Answer 5

Adductor Magnus

O: inferior ramus of pubis, ischium

I: linea aspera, adductor tubercle of femur

A: adduction, flexion, external rotation, extension, hyperextension, internal rotation

Question 6

Answer 6

Adductor Longus

O: anterior body of pubis

I: medial 1/3 linea aspera

A: adduction, flexion, external rotation

(medial border of femoral triangle)

Question 7

Answer 7

Adductor Brevis

O: inferior ramus of pubis

I: upper 1/3 medial linea aspera

A: adduction, flexion, external rotation

Question 8

Answer 8

Pectineus

O: superior ramus of pubis

I: lesser trochanter to linea aspera (pectineal line)

A: adduction, flexion, external rotation

Question 9

Answer 9

Rectus Femoris

O: anterior head=AIIS

Posterior head= upper margin of acetabulum

I: top of patella to tibial tuberosity by patellar tendon

A: hip flexion, knee extension

QUAD (only one that crosses the hip)

Question 10

Answer 10

Sartorius

O: ASIS

I: upper, medial part of tibia

A: hip flexion, external rotation, abduction, knee flexion

LONGEST MUSCLE IN BODY

Question 11

Answer 11

Iliacus

O: iliac fossa

I: lesser trochanter

A: hip flexion, external rotation, adduction

“true groin muscle”

Question 12

Answer 12

Psoas Major

O: transverse process of lumbar vertebrae

I: lesser trochanter

A: hip flexion, external rotation, adduction

“true groin mucsle”

Question 13

Answer 13

Gluteus Medius

O: posterior surface of ilium

I: greater trochanter

A: abduction, flexion, internal rotation, extension, hyperextension, external rotation

IM injections

Question 14

Answer 14

Tensor Fasciae Latae

O: ASIS

I: IT band

A: abduction, hip flexion, internal rotation

Question 15

Answer 15

Gluteus Maximus

O: gluteal line of ilim, sacrum/coccyx

I: IT band

A: hip extension, hyperextension, external rotation, adduction

Question 16

Answer 16

Gluteus Minimus

O: lower part of posterior surface of ilium

I: greater trochanter

A: abduction, internal rotation, flexion

(smallest, deepest gluteal, keeps the pelvis level)

Question 17

Name the 6 external rotators, and their O, I, and A

Answer 17

Piriformis

Obturator Externus

Obturator Internus

Gemellus Superior

Gemellus Inferior

Quadratus Femoris

O: ischium

I: greater trochanter

A: external rotation, stabilize the femur

Question 18

irritation of ITB, usually by the knee; passes over the lateral epicondyle of the femur so it is prone to friction when sliding over it back and forth

Answer 18

IT Band Syndrome

Question 19

similar to ITB syndrome, but with greater trochanter

Answer 19

trochanteric bursitis

Question 20

Hip extensors/flexors strength imbalance

Answer 20

stronger extensors than flexors

Question 21

name the muscles in the hip adductor group (4)

Answer 21

pectineus

adductor brevis

adductor longus

and adductor magnus

Question 22

femoral triangle

Answer 22

superior border: inguinal ligament

lateral border: sartorius

medial border: adductor longus

Question 23

posterior pelvic tilit position helps with what movements

Answer 23

hip flexion

Question 24

anterior pelvic tilt position helps with what movements

Answer 24

hip hyperextension movements