Lesson 5: Hip & Upper Leg Muscles Flashcards
Origin & Insertion
psoas major
p. 332
origin: bodies and transverse processes of lumbar vertebrae
insertion: lesser trochanter
Actions
psoas major
p. 332
fixed origin:
hip flexion
hip lateral rotation
fixed insertion:
trunk flexion
anterior pelvic tilt
unilaterally:
assist lateral lumbar flexion
Origin & Insertion
iliacus
p. 332
origin: iliac fossa
insertion: lesser trochanter
Actions
iliacus
p. 332
hip flexion (fixed origin)
lateral rotation (fixed origin)
trunk flexion (fixed insertion)
anterior pelvic tilt (fixed insertion)
Origin & Insertion
rectus femoris
p. 306
origin: AIIS
insertion: tibial tuberosity (patella & patellar ligament)
Actions
rectus femoris
p. 306
knee extension
hip flexion
Origin & Insertion
vastus medialis
p. 306
origin: medial lip of linea aspera
insertion: tibial tuberosity (patella and patellar ligament)
Actions
vastus medialis
p. 306
knee extension
Origin & Insertion
vastus intermedius
p. 306
origin: anterior/lateral shaft of femur
insertion: tibial tuberosity (patella and patellar ligament)
Actions
vastus intermedius
p. 306
knee extension
Origin & Insertion
vastus lateralis
p. 306
origin: lateral lip of linea aspera, gluteal tuberosity, greater trochanter
insertion: tibial tuberosity (patella and patellar ligament)
Actions
vastus lateralis
p. 306
knee extension
Origin & Insertion
sartorius
p. 326
origin: ASIS
insertion: proximal/medial shaft of tibia at pes anserinus tendon
Actions
sartorius
p. 326
hip flexion
hip lateral rotation
hip abduction
knee flexion
medial rotation of flexed knee
Origin & Insertion
adductor longus
p. 320
origin: pubic tubercle
insertion: medial lip of linea aspera
Actions
adductor longus
p. 319
adduct hip
medially rotate hip
flex hip (assist)
Origin & Insertion
adductor brevis
p. 320
origin: inferior ramus of pubis
insertion: pectineal line and medial lip of linea aspera
Actions
adductor brevis
p. 319
adduct hip
medially rotate hip
flex hip (assist)
Origin & Insertion
adductor magnus
p. 320
origin: inferior ramus of pubis, ramus of ischium, ischial tuberosity
insertion: medial lip of linea aspera and adductor tubercle
Actions
adductor magnus
p. 319
adduct hip
medially rotate hip
flex hip (assist)
Origin & Insertion
gracilis
p. 321
origin: inferior ramus of pubis
insertion: proximal/medial shaft of tibia at pes anserinus tendon
Actions
gracilis
p. 319
adduct hip
medially rotate hip
flex hip (assist)
flex knee
medially rotate flexed knee
extend hip (posterior fibers)
Origin & Insertion
pectineus
p. 321
origin: superior ramus of pubis
insertion: pectineal line of femur
Actions
pectineus
p. 319
adduct hip
medially rotate hip
flex hip (assist)
Origin & Insertion
gluteus maximus
p. 315
origin: coccyx, edge of sacrum, posterior iliac crest, sacrotuberous/sacroiliac ligaments
insertion: IT tract (upper fibers), gluteal tuberosity (lower fibers)
Actions
gluteus maximus
p. 315
extend hip
laterally rotate hip
abduct hip
adduct hip (lower fibers)
Origin & Insertion
gluteus medius
p. 315
origin: gluteal surface of ilium
insertion: lateral aspect of greater trochanter
Actions
gluteus medius
p. 315
abduct hip
flex hip (anterior fibers)
medially rotate hip (anterior fibers)
extend hip (posterior fibers)
laterally rotate hip (posterior fibers)
Origin & Insertion
gluteus minimus
p. 316
origin: gluteal surface of ilium
insertion: anterior aspect of greater trochanter
Actions
gluteus minimus
p. 316
abduct hip
medially rotate hip
flex hip
Origin & Insertion
tensor fascia latae (TFL)
p. 324
origin: iliac crest
insertion: ilitotibial (IT) tract
Actions
tensor fascia latae (TFL)
p. 324
flex hip
medially rotate hip
abduct hip
Origin & Insertion
piriformis
p. 328
origin: anterior surface of sacrum
insertion: superior aspect of greater trochanter
Actions
piriformis
p. 328
laterally rotate hip
abduct hip (when hip is flexed)
Origin & Insertion
superior gemellus
p. 329
origin: ischial spine
insertion: medial surface of greater trochanter
Actions
superior gemellus
p. 329
laterally rotate hip
Origin & Insertion
inferior gemellus
p. 329
origin: ischial tuberosity
insertoin: medial surface of greater trochanter
Actions
inferior gemellus
p. 329
laterally rotate hip
Origin & Insertion
quadratus femoris
p. 328
origin: lateral border of ischial tuberosity
insertion: intertrochanteric crest
Actions
quadratus femoris
p. 328
laterally rotate hip
Origin & Insertion
obturator externus
p. 329
origin: rami of pubis and ischium, obturator membrane
insertion: trochanteric fossa of femur
Actions
obturator externus
p. 329
laterally rotate hip
Origin & Insertion
obturator internus
p. 328
origin: obturator membrane, inferior surface of obturator foramen
insertion: medial surface of greater trochanter
Actions
obturator internus
p. 328
laterally rotate hip
Origin & Insertion
semitendinosus
p. 312
origin: ischial tuberosity
insertion: proximal/medial shaft of tibia at pes anserinus tendon
Actions
semitendinosus
p. 312
flex knee
extend hip
medially rotate flexed knee
medially rotate hip (assist)
posterior pelvic tilt
Origin & Insertion
semimebranosus
p. 312
origin: ischial tuberosity
insertion: posterior aspect of medial condyle of tibia
Actions
semimembranosus
p. 312
flex knee
medially rotate flexed knee
extend hip
medially rotate hip (assist)
posterior pelvic tilt
Origin & Insertion
biceps femoris
p. 312
origin: ischial tuberosity (long head), lateral lip of linea aspera (short head)
insertion: head of fibula
Actions
biceps femoris
p. 312
flex knee
laterally rotate flexed knee
extend hip (long head)
laterally rotate hip (long head assist)
posterior pelvic tilt
