LE Attachments

Serratus Posterior Superior

O: spinous processes of C7-T3

I: inferior borders of ribs 2-5

Serratus Posterior Inferior

O: spinous processes of T11-L2

I: inferior borders of ribs 9-12

Iliocostalis

O: thoracolumbar fascia attached to sacrum, iliac crest, spinous processes L5-T11, supraspinous ligaments, and angles of ribs

I: costal angles

Longissimus

O: thoracolumbar fascia attached to sacrum, iliac crest, spinous processes L5-T11, supraspinous ligaments, and angles of ribs

I: ribs and transverse processes

Spinalis

O: thoracolumbar fascia attached to sacrum, iliac crest, spinous processes L5-T11, supraspinous ligaments, and angles of ribs

I; spinous processes

Semispinalis

O: transverse processes

I: distant superior spinous processes

Multifidis

O: sacrum, posterior sacroiliac ligament, posterior iliac spine, transverse processes

I: more superior spinous processes

Rotatores

O: transverse processes

I: spinous processes of vertebra above

Interspinales

Between spinous processes of adjacent vertebrae

Intertransversarii

Between the transverse processes of adjacent vertebrae

Splenius Cervicis

O: spinous processes of T3-T6

I: posterior tubercles of transverse processes of C1-C3

Splenius Capitis

O: ligamentum nuchae and spinous processes T4-C7

I: mastoid process

Longus Colli

O: anterior tubercles and bodies of T3-C3

I: anterior tubercles and bodies ofc C6-C1

Longus Capitis

O: anterior tubercles of C3-C6

I: basilar potion of occipital bone

Iliacus

O: iliac fossa, iliac crest, sacral ala, and sacroiliac ligaments

I: lesser trochanter of femur

Psoas Major

O: anterior transverse processes, vertebral bodies, and discs of T12-L5

I: lesser trochanter of femur

Rectus Femoris

O: anterior inferior ilia spine and groove superior to the acetabulum

I: base of patella

Sartorius

O: anterior superior iliac spine

I: medial aspect of proximal tibia

Tensor Fasciae Latae

O: anterior superior iliac spine and external lip iliac crest

I: iliotibial tract

Vastus Intermedius

O: anterior aspect of proximal 2/3 of femoral shaft

I: lateral border of patella

Vastus Lateralis

O: intertrochanteric line, greater trochanter, gluteal tuberosity, and linea aspera

I: base and lateral border of patella

Vastus Medialis

O: intertrochanteric line, spiral line, linea aspera, and medial supracondylar line

I: base and medial border of patella

Articularis Genu

O: distal anterior shaft of femur

I: proximal portion of synovial membrane of knee joint

Adductor Brevis

O: inferior pubic ramus

I: distal 2/3 pectineal lineand medial lip linea aspera

Adductor Longus

O: pubic crest

I: medial lip of linea aspera

Adductor Magnus

O: inferior pubic ramus, ischial ramus, and ischial tuberosity

I:

Adductor Part = gluteal tuberosity and linea aspera

Hamstring Part = medial supracondylar ridge and adductor tubercle

Gracilis

O: body of pubis and inferior pubic ramus

I: medial surface of tibia, distal to condyle, proximal to insertion of semitendinosus, lateral to insertion of sartorius

Pectineus

O: superior pubic ramus

I; femur between the lesser trochanter and line aspera (pectineal line)

Obturator Externus

O: rami of pubis and ischium; external surface of obturator membrane

I: trochanteric fossa

Superior Gemellus

O: external surface spine of ischium via obturator internus tendon

I: greater trochanter

Inferior Gemellus

O: proximal ischial tuberosity via obturator internus tendon

I: greater trochanter

Gluteus Maximus

O: aponeurosis of erector spinae, sacrum, sacrotuberous ligament, and posterior gluteal line (innominate)

I: greater trochanter, gluteal tuberosity of femur, and iliotibial tract

Gluteus Medius

O: external iliac surface

I: oblique ridge on the lateral aspect of the greater trochanter; gluteal aponeurosis

Gluteus Minimus

O: external iliac surface and margin of the greater sciatic notch

I: anterolateral aspect of the greater trochanter

Obturator Internus

O: anterolateral wall of pelvis and obturator membrane

I: medial surface of the greater trochanter

Piriformis

O: anterolateral sacrum and posterior inferior iliac spine

I: upper border of greater trochanter

Quadratus Femoris

O: ischial tuberosity

I: quadrate tubercle of femur

Biceps Femoris

O:

Long Head = ischial tuberosity and sacrotuberous ligament

Short Head = lateral lip of linea aspera and lateral supracondylar line

I: lateral side of fibular head

Semimembranosus

O: ischial tuberosity

I: posterior aspect of medial tibial condyle

Semitendinosus

O: ischial tuberosity

I: proximal, medial tibia

Extensor Digitorum Longus

O: lateral tibial condyle, proximal ¾ of fibular and crural interosseous membrane

I: dorsal digital expansions of toes 2-5

Extensor Hallicus Longus

O: middle 1/2 of fibular surface and crural interosseous membrane

I: distal phalangeal base of 1st toe

Fibularis Tertius

O: distal fibula and crural interosseous membrane

I: base of the 5th metatarsal

Tibialis Anterior

O: lateral condyle and proximal 2/3 of tibia’s lateral surface and crural interosseous membrane

I: medial cuneiform and adjacent 1st metatarsal

Fibularis Longus

O: