Lower Exrtemity Flashcards
Iliacus
O: just inferior to medial/ internal iliac crest
I: lesser trochanter of femur
Psoas major
O:Anterolateral bodies of t12- L5 intervertebral discs
I: lesser trochanter
Gluteus minimus
O: lateral/ external ilium
I: anterior surface of greater trochanter of femur
Gluteus medius
O: lateral/ external iliac crest
I: lateral surface of greater trochanter
Gluteus Maximus
O: posterior iliac crest, posterolateral sacrum and coccyx
I: iliotibial band and gluteal tuberosity of femur
Piriformis
O: Anterolateral sacrum and posterior margin greater sciatic notch
I: superior border of greater trochanter
Superior gemellus
O: external surface of ischial spine
I: medial surface of greater trochanter
Inferior gemellus
O: proximal aspect of ischial tuberosity
I: medial surface of greater trochanter( with the Obturator internus)
Obturator Externus
O: external rami of ischium and pubis
I: trochanteric fossa of greater trochanter
Obturator internus
O: internal ramus of ischium and entire pubis and travels through lesser sciatic notch
I: medial surface of greater trochanter
Quadratus femoris
O: proximal part of lateral border of ischial tuberosity
I: lateral margin of intertrochanteric crest
Tensor fascia latae
O: ASIS
I: iliotibial band anterior side 1/3 way down thigh
Anterior to gluteus medius
Muscles posterior border on line between ASIS and greater trochanter
Sartorius
O: ASIS
I: pes anserine tendon group
Rectus femoris
O:Straight head/ tendon: AIIS
Reflected head/ tendon: superior rum of acetabulum
I: tibial tuberosity
Vastus lateralis
O:Line aspera of femur(lateral lip); anterior and inferior borders of greater trochanter
I: tibial tuberosity
Vastus intermedius
O: anterior and lateral shaft of proximal 2/3 of femur
I: tibial tuberosity
Vastus medialis
O: line aspera of femur medial lip; distal half of intertrochanteric line
I: tibial tuberosity
Biceps femoris
O: long head: ischial tuberosity
Short head: lateral lip of linea aspera mid 1/3 of shaft of femur
I: lateral head of fibula and lateral tibial condyle
Semitendinosus
O: ischial tuberosity
I: pes anserine tendon group
Semimembranosus
O: ischial tuberosity
I: medial condyle of tibia
Tibialis anterior
O: proximal 2/3 anterior tibia and lateral tibial condyle
I: medial and plantar side of medial cuneiform
Articularis genus
O: anterior surface of distal shaft of femur
I: proximal part of knee joint capsul
Pectineus
O: superior pubis
I: proximal posterior shaft of femur below the lesser trochanter
Adductor Magnus
O: inferior rami of ischium and ischial tuberosity
I:gluteal tuberosity and linea aspera and adductor tubercle of femur
Gracilis
O: inferior ramus of pubis
I: pes anserine tendon
Adductor brevis
O: inferior ramus of pubis
I: proximal 1/3 of posterior femur
Adductor longus
O: anterior body of pubis
I: middle third of linea asper of femur
Popliteus
O: lateral surface of lateral condyle of femur
I:medial side of proximal posterior tibia
Tibialis posterior
O: proximal 2/3 of posterior tibia and fibula
I:plantar surface of metatarsals 2-4 and all tarsal bones
Flexor digitorum longus
O: middle 1/3 of posterior tibia
I; planter surface of base of distal phalanges 2-5
Flexor hallicus longus
O: distal 2/3 of posterior fibula and interosseus membrane
I: plantar surface of base of distal phalanx of big toe
Extensor digitorum brevis
O: dorsal surface of distal calcaneus
I: digits 1-4 medial tendon into proximal phalange
Other three: join distal tendon of extensor digitorum longus muscle of 2-4
Extensor hallicus brevis
O:dorsal surface of distal calcaneus
I: dorsal surface of base of proximal phalanx of big toe
Abductor hallicus
O:medial side of calcaneal tuberosity
I: medial and plantar side of base of proximal phalange of big toe
Flexor digitorum brevis
O: medial process of calcaneal tuberosity
I:medial and lateral sides of middle phalanx of toes 2-5
Extensor digitorum longus
O: proximal 2/3 of fibula and lateral tibial condyle
I; dorsal side of idle and distal phalanges of 2-5
Extensor hallicus longus
O: middle 1/3 anterior fibula
I: dorsal side of distal phalanx of hallux
Fibularis teritius
O: distal 1/3 of anterior fibula
I: dorsal surface of base of 5th metatarsal
Fibularis longus
O: head and proximal 2/3 lateral fibula
I: lateral side of medial cuneiform and of base of 1 metatarsal
Fibularis brevis
O: distal 1/2 of lateral fibula
I: tuberosity at base of 5th metatarsal
Soleus
O: posterior surface of proximal tibia and fibula ( head and proximal 1/3)
I: posterior calcaneus via calcaneal (Achilles) tendon
Gastrocnemius
O: medial head: medial femoral condyle ( just proximal to)
Lateral head: lateral femoral condyle ( just proximal to)
I:posterior calcaneus via calcaneal
Plantaris
O: distal posterolateral femur
I: posterior surface of calcaneus
Quadratus plantae
O: medial head: medial surface of calcaneus
Lateral head: lateral surface of plantar calcaneus
I: plantar, lateral and dorsal surface of dicks tendon
Flexor hallicus brevis
O: medial side of cuboid and lateral cuneiform and tendon to Tibialis posterior
I: medial and lateral sides of plantar surface of base of proximal phalanx of big toe
Sesamoif bone in each tendon as it crosses heads of metatarsal 1
