4 Lower Leg I,O, A

Question 1

tibialis anterior

origin

Answer 1

Upper 2/3 of tibia

Question 2

tibialis anterior

insertion

Answer 2

Medial cuneiform & 1st metatarsal

Question 3

tibialis anterior

action

Answer 3

Dorsiflexion; Inversion

Question 4

extensor halliucs longus

origin

Answer 4

Middle 2/3 of front of fibula

Question 5

extensor halliucs longus

insertion

Answer 5

Distal phalanx of great toe

Question 6

extensor halliucs longus

action

Answer 6

Dorsiflexion; Inversion, Extension of big toe

Question 7

extensor digitorum longus

origin

Answer 7

Outer condyle of tibia; upper 2/3 fibula

Question 8

extensor digitorum longus

insertion

Answer 8

Middle & distal phalanges of 4 lateral toes

Question 9

extensor digitorum longus

action

Answer 9

Dorsiflexion, Eversion, Toe extension (4 lat. toes)

Question 10

peroneus tertius

origin

Answer 10

Lower 1/3 of fibula

Question 11

peroneus tertius

insertion

Answer 11

Base of 5th metatarsal

Question 12

peroneus tertius

action

Answer 12

Dorsiflexion, eversion

Question 13

anterior compartment

Answer 13

tibialis anterior
extensor hallicus longus
extensor digitorum longus
peroneus tertius

Question 14

lateral compartment

Answer 14

peroneus brevis

peroneus longus

Question 15

peroneus longus

origin

Answer 15

Lower 2/3 of fibula

Question 16

peroneus longus

insertion

Answer 16

Base of 5th metatarsal

Question 17

peroneus longus

action

Answer 17

Plantarflexion, eversion

Question 18

peroneus brevis

origin

Answer 18

Head & upper 2/3 of fibula

Question 19

peroneus brevis

insertion

Answer 19

Medial cuneiform & base of 1st metatarsal

(tendon runs under transverse arch)

Question 20

peroneus brevis

action

Answer 20

Plantarflexion, Eversion

Question 21

intrinsic muscles of the foot

Answer 21

do not cross the ankle joint
act as a functional unit
stabilization of foot during propulsion

Question 22

tibialis posterior

origin

Answer 22

Upper ½ interosseus membrane & adjacent

tibia & fibula

Question 23

tibialis posterior

insertion

Answer 23

Navicular, cuneiforms, & bases of metatarsals 2,3,4,5

Question 24

tibialis posterior

action

Answer 24

Plantarflexion, Inversion

Question 25

flexor digitorum longus | origin

Answer 25

Lower 2/3 posterior surface of tibia

Question 26

flexor digitorum longus | insertion

Answer 26

Base of phalanx of the 4 lateral toes

Question 27

flexor digitorum longus | action

Answer 27

Plantarflexion, Inversion, Flexion Toe (4 lat. toes)

Question 28

flexor hallicus longus | origin

Answer 28

Lower 2/3 posterior surface of fibula

Question 29

flexor hallicus longus | insertion

Answer 29

Undersurface, base of distal phalanx of big toe

Question 30

flexor hallicus longus | action

Answer 30

Plantarflexion, Inversion, Flexion big toe

Question 31

soleus | origin

Answer 31

Upper 2/3 posterior surface of tibia & fibula

Question 32

soleus | insertion

Answer 32

Calcaneus via Achilles tendon

Question 33

soleus | action

Answer 33

Plantarflexion

Question 34

gastrocnemius | origin

Answer 34

Posterior surface of 2 condyles of femur

Question 35

gastrocnemius | insertion

Answer 35

Calcaneus via Achilles tendon

Question 36

gastrocneumius | action

Answer 36

Plantarflexion, Flexion of knee

Question 37

plantaris | origin

Answer 37

Lateral supracondylar line of femur

Question 38

plantaris | insertion

Answer 38

Calcaneus via Achilles tendon

Question 39

plantaris | action

Answer 39

Plantarflexion, Flexion of knee

Question 40

what is plantaris

Answer 40

vestigal, may not be present in all individuals

Question 41

quadriceps group

Answer 41

rectus femoris,

Question 42

2 joint muscle at knee and hip

Answer 42

rectus femoris vastus medialis vastus lateralis vastus intermedius

Question 43

rectus femoris | origin

Answer 43

Anterior-inferior iliac spine

Question 44

rectus femoris | insertion

Answer 44

Tibial tuberosity via patellar tendon

Question 45

recuts femoris | action

Answer 45

Knee extension, Hip flexion

Question 46

vastus medialis | origin

Answer 46

whole length of linea aspera & inner supracondylar ridge

Question 47

vastus medialis | insertion

Answer 47

Tibial tuberosity via patellar tendon

Question 48

vastus medialis | action

Answer 48

Knee extension

Question 49

vastus intermedius | origin

Answer 49

Upper 2/3 of front surface of femur

Question 50

vastus intermedius | insertion

Answer 50

Tibial tuberosity via patellar tendon

Question 51

vastus intermedius | action

Answer 51

Knee extension

Question 52

vastus lateralis | origin

Answer 52

Lateral surface of femur below the greater trochanter | & upper ½ of linea aspera

Question 53

vastus lateralis | origin

Answer 53

Tibial tuberosity via patellar tendon

Question 54

vastus lateralis | action

Answer 54

Knee extension

Question 55

hamstring group | characteristics

Answer 55

all have common origin site all are two joint muscles all share the common actions of hip extension and knee flexion

Question 56

hamstring group

Answer 56

biceps femoris semimbranous semitendinousus

Question 57

biceps femoris | origin

Answer 57

Two heads (1) ischial tuberosity (2) lower ½ linea aspera and lateral supracondylar ridge

Question 58

biceps femoris | insertion

Answer 58

Lateral condyle of tibia and head of fibula

Question 59

biceps femoris | action

Answer 59

Hip extension, Knee flexion, Outward rotation of | hip & knee

Question 60

semimembranosus | origin

Answer 60

Ischial tuberosity

Question 61

semimembranosus | insertion

Answer 61

Posterior surface of medial condyle of tibia

Question 62

semimembranosus | action

Answer 62

Hip extension, Knee flexion, Inward rotation of | hip & knee

Question 63

semitendinsus | origin

Answer 63

Ischial tuberosity

Question 64

semitendinsus | insertion

Answer 64

Anterior surface of medial condyle of tibia | medial to tibial tuberosity

Question 65

semitendinosus | action

Answer 65

Hip extension, Knee flexion, Inward rotation of | hip & knee