DISSECTION 3: ANTERIOR LOWER LIMB Flashcards
Sartorius
O: ASIS
I: tibia(medial surface of proximal)
A:
Flexion (hip and knee)
ABduction
ER: external rotation/lateral rotation
N: Femoral N
Iliopsoas
O: 1. iliacus: iliac fossa
2: psoas major: transverse processes and bodies of vertebra T12-L5
I: lesser trochanter
A: flex hip
N: Femoral N
Pectineus
O: 1:Superior pubic ramus, 2:pectineal like of pubis
I: pectineal line (femur)
A: adduct and flex thigh
N: 1 femoral N
2: obturator N
Tensor Fascia Lata
O: ASIS
I: iliotibial tract
A: 1 abduct, flex,2 3 :medially rotate thigh
N: superior gluteal N
Rectus Femoris
O: AIIS
I: tibial tuberosity (via patellar ligament)
A: hip flexion, knee extension
N: femoral N
Vastus Medialis
O: Medial lip of linea aspera and intertrochanteric line
I: tibial tuberosity(via patellar ligament)
A: extend leg
N: femoral N
Vastus Lateralis
O: lateral lip of linea aspera, greater trochanter
I: tibial tuberosity via patellar ligament
A: extend leg
N: femoral N
Vastus Intermedius
O: shaft of femur(anterior and lateral surfaces)
I: tibial tuberosity(via patellar ligament)
A: extend leg
N: femoral N
Gracilis
O: 1: inferior pubic ramus
2: body of pubis
I: medial tibia (superiorly)
A: adduct thigh, flex and medially rotate leg
N: Obturator N
Adductor Longus
O: Body of pubis inferior to pubic crest
I: middle 1/3 of linea aspera
A: adduct thigh
N: obturator N
Adductor Brevis
O: Body of pubis and inferior pubic ramus
I: 1: pectineal line , 2: proximal part of linea aspera
A:adduct thigh
N: obturator N
Adductor Magnus
O: ischiopubic ramus and ischial tuberosity
I: Adductor part: gluteal tuberosity, linea aspera, medial supracondylar line
Hamstring part: adductor tubercle
A: adductor part: adduct thigh
hamstring part: extend thigh
N: adductor part: obturator N
hamstring part: tibial division of sciatic N
Tibialis Anterior
O: Lateral condyle and superior ½ of lateral surface of tibia
I: Base of first metatarsal and medial and inferior surfaces of medial cuneiform
A: dorsiflexion and inversion
N: deep fibular N
Extensor hallucis longus
O:Middle part of anterior surface of fibula and interosseous membrane
I:Dorsal aspect of base of distal phalanx of 1st digit
A: Extend first digit and dorsiflex foot
N: Deep fibular N
Extensor digitorum Longus
O: Lateral condyle of tibia and superior ¾ of anterior surface of interosseous membrane
I: Extensor expansion to distal phalanges of digits 2-4
A: Extend digits 2-4 and dorsiflexion
N: Deep fibular N
