LE OINAs

Vastus Intermedius Origin

Anterior and lateral surfaces of femur

Biceps Femoris (Long Head) Nerve

Tibial nerve (L5, S1, S2)

Plantaris Origin

Lateral supracondylar ridge of femur

Fibularis Tertius Origin

Inferior 1/3 of anterior surface of fibula and interosseous membrane

Abductor Hallucis Nerve

Medial plantar nerve (S2, S3)

Flexor Hallucis Brevis Origin

Cuboid and lateral cuneiform

Psoas Minor Origin

T12-L1 vertebrae and discs

Psoas Minor Action

Some stability in pelvis proprioceptor role

Pectineus Action

Flexes hip

Adducts hip

Assists with IR and ER

Adductor Brevis Insertion

Pectineal line and superior part of linea aspera of femur

Adductor Magnus (Adductor Portion) Insertion

Gluteal tuberosity, linea aspera, medial supracondylar line

Gracilis Insertion

Pes anserine

Semitendinosus Nerve

Tibial nerve (L5, S1, S2)

Gastrocnemius (Lateral Head) Origin

Lateral femoral condyle

Tibialis Posterior Insertion

Navicular tuberosity, all cuneiform bones, cuboid and bases of metatarsals 2-4

Tibialis Posterior Action

Plantarflexes ankle; inverts (supinates) midfoot

Flexor Digitorum Longus Action

Plantarflexes ankle, flexes digits 2-5

Flexor Hallucis Longus Insertion

Base of distal phalanx of great toe

Fibularis Tertius Nerve

Deep fibular nerve (L4, L5, S1)

Extensor Hallucis Brevis Action

Extends great toe

Abductor Hallucis Origin

Calcaneus

Abductor Digiti Minimi Insertion

proximal phalanx of 5th digit

Dorsal Interossei Nerve

Lateral plantar nerve (S2, S3)

Gluteus Maximus Origin

Posterior ilium, dorsal surface of sacrum and coccyx, sacrotuberous ligament

Gluteus Maximus Insertion

iliotibial tract and gluteal tuberosity of femur

Gluteus Maximus Nerve

Inferior gluteal nerve (L5, S1, S2)

Gluteus Maximus Action

Extends hip (especially from flexed position) and lateral rotation

Gluteus Medius Origin

Superior half of external surface of ilium

Gluteus Medius Insertion

Lateral surface of greater trochanter of femur

Gluteus Medius Nerve

Superior gluteal nerve (L4, L5, S1)

Gluteus Medius Action

Abducts and medially rotates hip

Gluteus Minimus Origin

Inferior half of external surface of ilium

Gluteus Minimus Insertion

Anterior surface of greater trochanter of femur

Gluteus Minimus Nerve

Superior gluteal nerve (L4, L5, S1)

Gluteus Minimus Action

Abducts and medially rotates hip

Piriformis Origin

Anterior surface of sacrum and sacrotuberous ligament

Piriformis Insertion

Superior border of greater trochanter

Piriformis Nerve

Nerve to piriformis (L5, S1, S2)

Piriformis Action

Laterally rotates extended hip and abducts flexed hip

Superior Gemellus Origin

Ischial spine

Superior Gemellus Insertion

Medial surface of greater trochanter of femur

Superior Gemellus Nerve

Nerve to obturator internus (L5, S1, S2)

Superior Gemellus Action

Laterally rotates extended hip and abducts flexed hip

Inferior Gemellus Origin

Ischial tuberosity

Inferior Gemellus Insertion

Medial surface of greater trochanter of femur

Inferior Gemellus Nerve

Nerve to quadratus femoris (L4, L5, S1)

Inferior Gemellus Action

Laterally rotates extended hip and abducts flexed hip

Quadratus Femoris Origin

Lateral border of ischial tuberosity

Quadratus Femoris Insertion

Intertrochanteric crest of femur

Quadratus Femoris Nerve

Nerve to quadratus femoris (L4, L5, S1)

Quadratus Femoris Action

Laterally rotates extended hip and abducts flexed hip

Obturator Externus Origin

External surface of obturator foramen

Obturator Externus Insertion

Trochanteric fossa of femur

Obturator Externus Nerve

Obturator nerve (L2, L3, L4)

Obturator Externus Action

Laterally rotates hip

Psoas Major Origin

T12-L5 vertebrae and discs

Transverse processes of all lumbar vertebrae

Psoas Major Insertion

Lesser trochanter of femur

Psoas Major Nerve

Ventral primary rami (L1, L2, L3)

Psoas Major Action

Flex thigh at hip

Lateral rotation of hip

Psoas Minor Insertion

Pectineal line and iliopectineal eminence

Psoas Minor Nerve

Ventral Primary Rami (L1, L2, L3)

Tensor Fasciae Latae Origin

Anterior Superior Iliac Spine (ASIS)

Tensor Fasciae Latae Insertion

Iliotibial tract

Tensor Fasciae Latae Nerve

Superior gluteal nerve (L4, L5, S1)

Tensor Fasciae Latae Action

Abducts, medially rotates, and flexes hip

Sartorius Origin

Anterior Superior Iliac Spine (ASIS)

Sartorius Insertion

Pes anserine

Sartorius Nerve

Femoral nerve (L2, L3)

Sartorius Action

Abducts, laterally rotates, and flexes hip

Flexes knee

Rectous Femoris Origin

Anterior Inferior Iliac Spine (AIIS)

Rectous Femoris Insertion

Base of patella and tibial tuberosity

Rectous Femoris Nerve

Femoral Nerve (L2, L3, L4)

Rectous Femoris Action

Extends knee, Flexes hip

Vastus Lateralis Origin

Greater trochanter and lateral lip of linea aspera of femur

Vastus Lateralis Insertion

Base of patella and tibial tuberosity

Vastus Lateralis Nerve

Femoral Nerve (L2, L3, L4)

Vastus Lateralis Action

Extends knee

Vastus Intermedius Insertion

Base of patella and tibial tuberosity

Vastus Intermedius Nerve

Femoral nerve (L2, L3, L4)

Vastus Intermedius Action

Extends knee

Vastus Medialis Origin

Intertrochanteric line and medial lip of linea aspera of femur

Vastus Medialis Insertion

Base of patella and tibial tuberosity

Vastus Medialis Action

Extends knee

Pectineus Origin

Superior ramus of pubis

Pectineus Insertion

Pectineal line of femur

Pectineus Nerve

Femoral nerve (L2, L3, L4)

Adductor Longus Origin

Superior part of body of pubis

Adductor Longus Insertion

Middle 1/3 of linea aspera of femur

Adductor Longus Nerve

Obturator nerve (L2, L3, L4)

Adductor Longus Action

Adducts hip

Adductor Brevis Origin

Inferior part of body of pubis

Adductor Brevis Nerve

Obturator nerve (L2, L3, L4)

Adductor Brevis Action

Adducts hip and flexes hip

Adductor Magnus (Adductor Portion) Origin

Inferior ramus of pubis, ramus of ischium

Adductor Magnus (Adductor Portion) Nerve

Obturator nerve (L2, L3, L4)

Adductor Magnus (Adductor Portion) Action

Adducts and flexes hip

Adductor Magnus (Hamstrings Portion) Origin

Ischial tuberosity

Adductor Magnus (Hamstrings Portion) Insertion

Adductor tubercle of femur

Adductor Magnus (Hamstrings Portion) Nerve

Tibial nerve (L4, L5)

Adductor Magnus (Hamstrings Portion) Action

Adducts and extends hip