we goin' to HAYLLLLL

• Sartorius


  O: ASIS

  I: upper medial surface of shaft of tibia

  N: femoral n.

  A: FAbLaro of thigh; FMe of leg
• Iliacus


  O: iliac fossa of hip bone

  I: w/ psoas into lesser trochanter of femur

  N: femoral n.

  A: flexes thigh; if trunk is fixed, flexes trunk on thigh as in sitting up from lying down
• Psoas


  O: transverse process, bodies, and intervertebral discs of T12 and L1-L5

  I: w/ iliacus into lesser trochanter of femur

  N: lumbar plexus

  A: flexes thigh; if trunk is fixed, flexes trunk on thigh as in sitting up from lying down
• Pectineus


  O: superior ramus of pubis

  I: upper end of linea aspera of shaft of femur

  N: femoral n.

  A: FAd of thigh
• Rectus femoris (quad fem)


  O: straight head - AIIS; reflected head - ilium above acetabulum

  I: quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia

  N: femoral n.

  A: leg extension; thigh flexion
• Vastus lateralis (quad fem)


  O: upper end and shaft of femur

  I: quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia

  N: femoral n.

  A: leg extension
• Vastus medialis (quad fem)


  O: upper end and shaft of femur

  I: quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia

  N: femoral n.

  A: leg extension; stabilizes patella
• Vastus intermedius (quad fem)


  O: ant. and lat. surface of shaft of femur

  I: quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia

  N: femoral n.

  A: leg extension; articularis genus retracts synovial membrane
• Tibialis anterior


  O: lat. surface of shaft of tibia; interosseous membrane

  I: medial cuneiform and base of 1st metatarsal bone

  N: deep fibular n.

  A: dorsiflexion (ext.) and inversion of foot; holds up the medial longitudinal arch of foot
• Extensor digitorum longus


  O: ant. surface of shaft of fibula

  I: extensor expansion of lat. 4 toes

  N. deep fibular n.

  A: dorsiflexion; toe extension
• Fibularis tertius


  O: ant. surface of shaft of fibula

  I: base of 5th metatarsal bone

  N: deep fibular n.

  A: dorsiflexion and eversion of foot
• Extensor hallucis longus


  O: ant. surface of shaft of tibia

  I: base of distal phalanx of great toe

  N: deep fibular n.

  A: big toe ext.; dorsiflexion and inversion of foot
• Fibularis longus


  O: lat. surface of shaft of tibia

  I: base of 1st metatarsal and medial cuneiform

  N: superficial fibular n.

  A: plantar flexion and eversion of foot; supports lat. longitudinal and transverse arches of foot
• Fibularis brevis


  O: lat. surface of shaft of tibia

  I: base of 5th metatarsal bone

  N: superficial fibular n.

  A: plantar flexion and eversion of foot; supports lat. longitudinal arch of foot
• Gracilis


  O: inferior ramus of pubis, ramus of ischium

  I: upper part of shaft of tibia on medial surface

  N: obturator n.

  A: thigh adduction; leg flexion
• Adductor longus


  O: body of pubis, medial to pubic tubercle

  I: post. surface of shaft of femur

  N: obturator n.

  A: thigh adduction; assists in medial rotation
• Adductor brevis


  O: inferior ramus of pubis

  I: post. surface of shaft of femur

  N: obturator n.

  A: thigh adduction
• Adductor magnus


  O: inferior ramus of pubis, ramus of ischium, ischial tuberosity

  I: post. surface of shaft of tibia, adductor tubercle of femur

  N: adductors - obturator n.; hamstrings - sciatic n.

  A: thigh adduction and medial rotation; hamstrings extend thigh
• Obturator externus


  O: outer surface of obturator membrane; pubic and ischial rami

  I: medial surface of greater trochanter

  N: obturator n.

  A: lat. rotation of thigh
• Biceps femoris


  O: long head - ischial tuberosity; short head - linea aspera, lat. supracondylar ride of shaft of femur

  I: head of fibula

  N: long head - tibial portion of sciatic n.; short head - common fibular portion of sciatic n.

  A: FLa leg; long head - thigh ext.
• Semitendinosus


  O: ischial tuberosity

  I: upper part of medial surface of shaft of tibia

  N: tibial portion of sciatic n.

  A: FMa leg; thigh ext.
• Semimembranosus


  O: ischial tuberosity

  I: medial condyle of tibia

  N: tibial portion of sciatic n.

  A: FMa leg; thigh ext.
• Adductor magnus (hamstring portion)


  O: ischial tuberosity

  I: adductor tubercle of femur

  N: tibial portion of sciatic n.

  A: thigh ext.
• Gastrocnemius


  O: lat. head - lat. condyle of femur; med. head - above med. condyle

  I: via tendo calcaneus into post. surface of calcaneum

  N: tibial n.

  A: plantar flexion; knee flexion
• Plantaris


  O: lat. supracondylar ridge of femur

  I: post. surface of calcaneum

  N: tibial n.

  A: plantar flexion; knee flexion
• Soleus


  O: shafts of tibia and fibula

  I: via tendo calcaneus into post. surface of calcaneum

  N: tibial n.

  A: plantar flexion
• Popliteus


  O: lat. surface of lat. condyle of femur

  I: post. surface of shaft of tibia above soleal line

  N: tibial n.

  A: leg flexion; screw-home mechanism
• Flexor digitorum longus


  O: post. surface of shaft of tibia

  I: bases of distal phalanges of lat. four toes

  N: tibial n.

  A: flexes distal phalanges of four toes; supports medial and lateral longitudinal arches of foot
• Flexor hallucis longus


  O: post. surface of shaft of tibia

  I: base of distal phalanx of big toe

  N: tibial n.

  A: flexes distal phalanx of big toe; supports medial longitudinal arch of foot
• Tibialis posterior


  O: post. surface of shaft of tibia and fibula; interosseous membrane

  I: tuberosity of navicular bone (and other neighboring bones)

  N: tibial n.

  A: plantar flexion and inversion; supports medial longitudinal arch of foot
• Abductor hallucis


  O: medial tuberosity of calcaneum; flexor retinaculum

  I: base of proximal phalanx of big toe

  N: med. plantar n.

  A: FAb of big toe; braces medial longitudinal arch
• Flexor digitorum brevis


  O: medial tubercle of calcaneum

  I: four tendons to four lat. toes into borders of middle phalanx

  N: med. plantar n.

  A: flexes lat. four toes; braces medial and lat. longitudinal arches
• Abductor digiti minimi


  O: med. and lat. tubercles of calcaneum

  I: base of proximal 5th toe

  N: lat. plantar n.

  A: FAb 5th toe; braces lat. longitudinal arch
• Quadratus plantae


  O: med. and lat. sides of calcaneum

  I: tendon of FDL

  N: lat. plantar n.

  A: assists FDL in flexing lat. 4 toes
• Lumbricals (4) 


  O: tendons of FDL

  I: dorsal extensor expansion

  N: 1st lumbrical - med. plantar n.; remainder - lat. planter n.

  A: toe ext. at interphalangeal joints
• Flexor hallucis brevis


  O: cuboid, lat. cuneiform, tibialis post. insertion

  I: med. tendon into med. side of base of proximal phalanx of big toe; lat. tendon into lat. side of base proximal phalanx of big toe

  N: med. plantar n.

  A: metatarsophalangeal joint flex. of big toe; supports med. longitudinal arch
• Adductor hallucis


  O: oblique head - bases of 2nd, 3rd, and 4th metatarsal bones; transverse head - plantar ligaments

  I: lat. side of proximal phalanx of big toe

  N: deep branch of lat. plantar n.

  A: metatarsophalangeal joint flex. of big toe; holds metatarsal bones tgt
• Flexor digiti minimi brevis


  O: base of 5th metatarsal bone

  I: lat. side of proximal phalange of little toe

  N: lat. plantar n.

  A: metatarsophalangeal flex. of little toe
• Dorsal (4) 


  O: adjacent sides of metatarsal bones

  I: bases of proximal phalanges

  N: lat. plantar n.

  A: Ab. of toes; metatarsophalangeal joint flex. and interphalangeal ext.
• Plantar (3) 


  O: inferior surfaces of 3rd, 4th, and 5th metatarsal bones

  I: med. side of bases of proximal phalanges of lat. 3 toes

  N: lat. plantar n.

  A: Add. of toes; metatarsophalangeal flex. and interphalangeal ext.