anterior and lateral leg

Question 1

what is the name of the deep fascia of the leg

Answer 1

crural fascia

Question 2

what are the 3 compartments of the leg

Answer 2

anterior
lateral
posterior

Question 3

what divides the posterior compartment into superficial and deep

Answer 3

transverse muscular septum

Question 4

what vein travels in the posterior leg

Answer 4

short saphenous

Question 5

where does the great saphenous vein travel in the leg

Answer 5

medial aspect

Question 6

why do the fibres of the interosseous membrane pass inferolaterally from the tibia to fibula

Answer 6

prevents downward dislocation of the fibula - only 1/9 muscles that attach to fibula pull it up

Question 7

how many muscles are in the anterior compartment of the leg

Answer 7

4

Question 8

the anterior compartment of the leg is responsible for what movements

Answer 8

extension of ankle (dorsiflexion) and digits

Question 9

how many muscles are in the lateral compartment of the leg

Answer 9

2

Question 10

the lateral compartment of the leg is responsible for what movements

Answer 10

evertors of the foot

Question 11

the tendons of the lateral compartment of the leg pass ____ to the lateral malleolus

Answer 11

posterior

Question 12

eversion occurs between what joints

Answer 12

joints of the bones of the foot

Question 13

eversion causes the sole of the foot to face…

Answer 13

laterally

Question 14

what are the 2 muscles of the lateral compartment of the leg

Answer 14

peroneus longus and peroneus brevis

Question 15

what are the attachments of peroneus longus

Answer 15

head and upper 2/3 of lateral fibula to the base of the 1st metatarsal and medial cuneiform

Question 16

what is the innervation of peroneus longus

Answer 16

superficial peroneal nerve (L5, S1, S2)

Question 17

what is the most superficial muscle in the lateral compartment of the leg

Answer 17

peroneus longus

Question 18

the tendon of peroneus longus passes ____ to the lateral malleolus

Answer 18

posterior

Question 19

how does peroneus longus cause evertion

Answer 19

its tendon has a long path in the sole of the foot - passes over to medial side
- pulls lateral side of foot up and medial side of foot down

Question 20

the superficial peroneal nerve is a terminal branch of what

Answer 20

common peroneal nerve

Question 21

the common peroneal nerve is a terminal branch of what

Answer 21

sciatic nerve

Question 22

what are the attachments of peroneus brevis

Answer 22

inferior 2/3 of lateral fibula to the tuberosity on the lateral side of the base of the 5th metatarsal

Question 23

what is the innervation of peroneus brevis

Answer 23

superficial peroneal nerve (L5, S1, S2)

Question 24

does peroneus brevis cross the sole of the foot

Answer 24

no

Question 25

the tendon of peroneus longus causes a groove on the inferior surface of what bone

Answer 25

cuboid

Question 26

what are the 4 muscles of the anterior compartment of the leg

Answer 26

tibialis anterior extensor digitorum longus extensor hallucis longus peroneus tertius

Question 27

what is the nerve supply of the anterior compartment of the leg

Answer 27

deep peroneal nerve L4 L5

Question 28

the muscles of the anterior compartment of the leg cause what action

Answer 28

dorsiflexion

Question 29

what are the terminal branches of the common peroneal nerve

Answer 29

superficial and deep peroneal nerves

Question 30

what are the attachments of tibialis anterior

Answer 30

lateral condyle of the tibia, superior 1/2 of lateral tibial surface and interosseous membrane to the medial and inferior surfaces of the medial cuneiform and base of 1st metatarsal

Question 31

what is the function of tibialis anterior

Answer 31

dorsiflexes ankle | inverts foot

Question 32

the base of the first metatarsal and the cuneiform is the attachment site of tibialis anterior aswell as what

Answer 32

peroneus longus - opposing actions | PL trying to evert foot, TA trying to invert foot

Question 33

what are the attachments of extensor digitorum longus

Answer 33

lateral condyle of the tibia, superior 3/4 of medial surface of the fibula and interosseous membrane to the middle and distal phalanges of the lateral 4 digits

Question 34

what is the action of extensor digitorum longus

Answer 34

extends lateral 4 digits and dorsiflexes ankle

Question 35

what is the innervation of tibialis anterior

Answer 35

deep peroneal nerve L4 L5

Question 36

what is the innervation of extensor digitorum longus

Answer 36

deep peroneal nerve L4 L5

Question 37

what are the attachments of peroneus tertius

Answer 37

inferior 1/3 anterior fibula and interosseous membrane to the dorsum of the base of the 5th metatarsal

Question 38

what is the action of peroneus tertius

Answer 38

dorsiflex ankle | assists muscles of lateral compartment of foot in eversion as it attaches to lateral side of foot

Question 39

peroneus tertius has the tendency to blend with what

Answer 39

EDL

Question 40

what are the attachments of extensor hallucis longus

Answer 40

middle anterior surface of fibula, interosseous membrane to the dorsal aspect of the distal phalanx of hallux

Question 41

what is the action of extensor hallucis longus

Answer 41

extends hallux, dorsiflex ankle

Question 42

EHL is found in between what

Answer 42

EDL and TA

Question 43

what are the 2 parts of the extensor retinacula

Answer 43

superior and inferior

Question 44

what are the attachments of the superior extensor retinaculum

Answer 44

anterior border of tibia to the lower end of the fibula

Question 45

what shape is the inferior extensor retinaculum

Answer 45

Y shaped

Question 46

what are the attachments of the inferior extensor retinaculum

Answer 46

stem attached to calcaneus laterally upper limb attached to medial malleolus lower limb passes around medial border of foot to blend with dense fascia over abductor hallucis

Question 47

what is the attachment of the stem of the inferior extensor retinaculum

Answer 47

calcaneus

Question 48

what is the attachment of the upper limb of the inferior extensor retinaculum

Answer 48

medial malleolus

Question 49

what is the attachment of the lower limb of the inferior extensor retinaculum

Answer 49

passes around medial border of the foot to blend with the dense fascia over abductor hallucis

Question 50

what are the muscles of the dorsum of the foot

Answer 50

extensor hallucis brevis | extensor digitorum brevis

Question 51

what are the attachments of extensor hallucis brevis

Answer 51

superior surface of calcaneus and inferior extensor retinaculum to the base of the proximal phalanx of hallux

Question 52

what are the attachments of the extensor digitorum brevis

Answer 52

superior surface of calcaneus and inferior extensor retinaculum to the long extensor tendons of toes 2-4

Question 53

what is the innervation of the muscles of the dorsum of the foot

Answer 53

deep peroneal nerve (L5/S1)

Question 54

the sciatic nerve divides into two terminal branches; what are they and their roots

Answer 54

``` tibial nerve (L4-S3) common peroneal nerve (L4-S2) ```

Question 55

the common peroneal nerve wraps around the _____ aspect of the leg where

Answer 55

lateral aspect of the leg at the neck of the fibula

Question 56

as the common peroneal nerve wraps around the lateral aspect of the leg at the neck of the fibula, it gives its terminal branches which are

Answer 56

superficial and deep peroneal nerve

Question 57

the superficial peroneal nerve remains in the ____ compartment of the leg and continues distally as what

Answer 57

lateral - supplies these muscles | continues distally as a cutaneous nerve to supply much of skin of dorsum of foot and anterolateral aspect of leg

Question 58

the deep peroneal nerve runs on the ____ surface of the interosseous membrane

Answer 58

anterior - supplies muscles of anterior compartment then continues to dorsum of foot where it supplies these 2 muscles

Question 59

the deep peroneal nerve supplies what

Answer 59

muscles of anterior compartment of leg muscles of dorsum of foot cutaneous innervation to the first web space

Question 60

the superficial peroneal nerve forms from the common peroneal nerve between what structures

Answer 60

peroneus longus and neck of fibula

Question 61

the deep peroneal nerve forms from the common peroneal nerve between what structures

Answer 61

peroneus longus and neck of fibula

Question 62

the deep peroneal nerve passes through what muscle

Answer 62

extensor digitorum longus

Question 63

the deep peroneal nerve travels with what structure on anterior interosseous membrane

Answer 63

anterior tibial artery

Question 64

what is the cutaneous innervation of anterolateral aspect of leg

Answer 64

sural nerve

Question 65

what is the cutaneous innervation of lateral edge of foot

Answer 65

terminal branch of the sural nerve - lateral dorsal cutaneous nerve of the foot

Question 66

what is the innervation of the anteromedial knee leg and ankle

Answer 66

saphenous nerve from femoral

Question 67

what is the cutaneous innervation of the 1st web space

Answer 67

deep peroneal nerve

Question 68

what is the cutaneous innervation of most of the dorsum of the foot

Answer 68

superficial peroneal nerve

Question 69

the great saphenous vein travels up what aspect of the leg

Answer 69

medial

Question 70

the great saphenous vein travels with what

Answer 70

superficial nerve

Question 71

what 2 branches does the popliteal artery give

Answer 71

anterior and posterior tibial

Question 72

what is the course of the anterior tibial artery

Answer 72

through interosseous membrane and descends on its surface then crosses anterior aspect of ankle and enters dorsum of foot

Question 73

what is the course of the posterior tibial artery

Answer 73

gives the fibular artery that provides perforating branches to the lateral compartment

Question 74

what vessel supplies the anterior compartment of the leg

Answer 74

anterior tibial

Question 75

what vessel supplies the lateral compartment of the leg

Answer 75

fibular artery from posterior tibial gives off perforating branches

Question 76

what is the dorsalis pedis artery

Answer 76

continuation of anterior tibial artery on dorsum of foot

Question 77

what are the branches of the dorsalis pedis

Answer 77

lateral tarsal artery deep plantar artery arcuate artery

Question 78

the arcuate artery runs across the metatarsals to anastomose with

Answer 78

lateral tarsal artery

Question 79

just before the dorsalis pedis forms the arcuate artery it gives off what

Answer 79

deep plantar artery

Question 80

the deep plantar artery anastomoses with what

Answer 80

vessels of the sole of the foot

Question 81

arcuate artery gives off numerous branches e.g.

Answer 81

metatarsal and digital arteries

Question 82

where does the dorsal venous arch drain

Answer 82

great saphenous vein