ANOIA lower extremity

Question 1

Rectus Femoris

Answer 1

O: anterior inferior iliac spine (ASIS)
I: tibial tuberosity (via patella and petellar ligament)
A: extend knee, flex hip
N: femoral

Question 2

Vastus medialis

Answer 2

O: medial lip of linea aspera
I: tibial tuberosity (via patella and petellar ligament)
A: extend knee
N: femoral

Question 3

vastus lateralis

Answer 3

O: lateral lip of linea aspera, gluteal tuberosity, greater trochanter
I: tibial tuberosity (via patella and petallar ligament)
A: extend knee
N: femoral

Question 4

Vastus intermedius

Answer 4

O: anterior and lateral shaft of femur
I: tibial tuberosity (via patella and patellar ligament)
A: extend knee
N: femoral

Question 5

Biceps femoris

Answer 5

O: long head: ischial tuberosity
Short head: lateral lip of linea aspera
I: head of the fibula
A: flex knee, laterally rotate flexed knee
long head: extend hip, laterally rotate hip, tilt pelvis posteriorly
N: long head: sciatic (tibial branch)
short head: sciatic (fibular branch)

Question 6

Semitendinosus

Answer 6

O: ischial tuberosity
I: proximal, medial shaft of tibia at pes anserinus tendon
A: flex knee, medially rotate flexed knee, extend hip, medially rotate hip, tilt pelvis posteriorly
N: sciatic (tibial branch)

Question 7

Semimembranosus

Answer 7

O: ischial tuberosity
I: posterior aspect of medial condyle of tibia
A: flex knee, medially rotate flexed knee, extend hip, medially rotate hip, tilt pelvis posteriorly
N: sciatic (tibial branch)

Question 8

Gastrocnemius

Answer 8

O: condyles of the femur posterior surfaces
I: calcaneus via calcaneal tendon
A: flex knee, plantar flex ankle
N: tibial

Question 9

Soleus

Answer 9

O: soleal line, proximal posterior surface of tibia, posterior aspect of head of fibula
I: calcaneus via calcaneal tendon
A: plantarflex ankle
N: Tibial

Question 10

Plantaris

Answer 10

O: lateral supracondylar line of femur
I: calcaneus via calcaneal tendon
A: weak plantar flexion, weak flexion of knee
N: tibial

Question 11

Popliteus

Answer 11

O: lateral condyle of femur
I: proximal, posterior aspect of fibia
A: medially rotate flexed knee, flex knee
N: tibial

Question 12

Fibularis longus

Answer 12

O: head of fibula and proximal 2/3 of lateral fibula
I: base of first metatarsal and medial cuneiform
A: evert foot, plantarflex ankle
N: superficial fibular

Question 13

Fibularis Brevis

Answer 13

O: distal 2/3 of lateral fibula
I: tubersoity of 5th metatarsal
A: evert foot, plantarflex ankle
N: superficial fibular

Question 14

Fibularis Tertius

Answer 14

O: medial surface of fibula, interosseus membrane
I: base of 5th metatarsal
A: evert foot, dorsiflex ankle
N: deep fibular

Question 15

Tibialis anterior

Answer 15

O: lateral condyle of tibia, proximal lateral surface of tibia, interosseus membrane
I: medial cuneiform and base of 1st metatarsal
A: invert foot, dorsiflex ankle
N: deep fibular

Question 16

Extensor digitorum longus

Answer 16

O: lateral condyle of tibia, proximal anterior shaft of fibula, interosseus membrane
I: middle and distal phalanges of 2-5
A: extend toes 2-5, dorsiflex ankle, evert foot
N: deep fibular

Question 17

Extensor hallicus longus

Answer 17

O: middle anterior surface of fibula, interosseus membrane
I: distal phalax of first toe
A: extend first toe, dorsiflex ankle, invert foot
N: deep fibular

Question 18

Tibialis posterior

Answer 18

O: proximal posterior shafts of tibia and fibula, interosseus membrane
I: all 5 tarsal bones and bases of metatarsals 2-4
A: invert foot, plantarflex ankle
N: tibial

Question 19

Flexor digitorum longus

Answer 19

O: middle posterior surface of tibia
I: distal phalanges of toes 2-5
A: flex toes 2-5, plantar flex ankle, invert foot
N: tibial

Question 20

Flexor hallicus longus

Answer 20

O: middle half of posterior fibula
I: distal phalax of first toe
A: flex first toe, plantar flexion, invert foot
N: tibial

Question 21

Extensor digitorum brevis

Answer 21

O: dorsal surface of calcaneus
I: toes 2-4 via extensor digitorum longus tendons
A: extend toes 2-4
N: deep fibular

Question 22

Flexor digitorum brevis

Answer 22

O: medial process of calcaneus and plantar appenurosis
I: middle phalanges of toes 2-5
A: flex middle phalanges of toes 2-5
N: tibial

Question 23

Abductor hallicus

Answer 23

O: medial process of calcaneus and plantar appenurosis
I: proximal phalanx of first toe and medial sesasmoid bone
A: abduct first toe, flex the first toe
N: tibial

Question 24

Abductor digiti minimi

Answer 24

O: lateral process of calcaneus and plantar appeneurosis
I: proximal phalanx of 5th toe
A: flex 5th toe, abduct 5th toe
N: tibial

Question 25

Extensor hallicus brevis

Answer 25

Location: base of 1st metatarsal to calcaneus
Action: extend first toe

Question 26

Flexor hallicus brevis

Answer 26

Location: surrounds 1st metatarsal to cuboid
Action: flex first toe

Question 27

Adductor hallicus

Answer 27

location: 7 on foot
action: adduct first toe, maintain transverse arch, flex 1st toe

Question 28

Flexor digiti minimi

Answer 28

loaction: side of pinky toe
action: flex 5th toe

Question 29

quadratus plante

Answer 29

location: calcaneus to midfoot
action: flex toes 2-5

Question 30

plantar interossei

Answer 30

location: between metatarsals - medial surface
action: adduct and flex toes 3-5

Question 31

dorsal interossei

Answer 31

location: between metatarsals - lateral surface
action: abduct and flex toes 2-4

Question 32

lumbricals of foot

Answer 32

location: between metatarsals - dorsal surface
action: flex proximal phalanges 2-5, extend middle and distal phalanges 2-5